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Is It Safe to Drink Water Boiled In a Microwave?

03/26/2012 2:55 PM

Many people here use boiled water for drinking purpose. I learnt that microwave-boiled

water is unfit for plants. Here http://www.snopes.com/science/microwave/plants.asp

Apart from the cost of heating, is water boiled in a microwave fit for drinking?? This is important to know because like me all who own microwaves freely use them for warming and cooking various food including warming milk and making tea and coffee.

Do we have any recent research available on the subject??

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Anonymous Poster #4
#149
In reply to #100
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Re: Is It Safe to Drink Water Boiled In a Microwave??

03/28/2012 7:05 AM

Shiney!!!

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#121
In reply to #19
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Re: Is It Safe to Drink Water Boiled In a Microwave??

03/27/2012 6:51 PM

Wow! Is it April Fools day already? Two people gave post #19 a "Good Answer"?

First, it is not an answer. Second, the information given is largely incorrect.

The link given is easy to explain, and does not need the "explanation" shown. The guy states that the microwaved liquid starts hotter, but seems to cool quicker. Yes, the hotter the material, the quicker the rate at which it cools. Simple physics.

The answer shown in the post is self contradictory. The microwaves entering the liquid can't be "random" in 3 dimensions and cause hotspots. In fact it is not random, the microwaves form a standing wave in the oven, causing hotspots (that's why most have turntables).

There are other problem with the explanation, but sorry, I don't have time for this foolishness (microscopic friction!!?).

Also, water is a strong absorber of microwaves, so it really does not penetrate very far into the water. So it is really closer to heating on a hot plate (except that it is not heated from the bottom) then most people think.

It is possible to superheat liquid on a hotplate, it's just easier and faster in a microwave.

Microwaves are part of the electromagnetic spectrum (like visible light), with a wavelength between IR and radio. If you put water in the sun, it will warm by IR. We are surrounded by radio waves, so water is constantly irradiated by that. Do these situations also worry you?

Heat from a hotplate makes water molecules vibrate faster (we commonly call this heat). So do microwaves. If this scares you don't drink water that has been microwaved. Also, keep it in the dark to avoid irradiation from visible light, but shielding from IR is nearly impossible. Wrap it it in aluminum foil to protect it from radio wave irradiation.

Peace.

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#123
In reply to #121

Re: Is It Safe to Drink Water Boiled In a Microwave??

03/27/2012 7:02 PM

You actually read that????????????????????? Trust me, It doesn't get any better.

I went back and read it just now. Just refer to my post #108 if you'd like my opinion of this one, too.

[Edit} And finally, thanks kevinm. I may end up on the naughty step if I'm not careful.

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#124
In reply to #121

Re: Is It Safe to Drink Water Boiled In a Microwave??

03/27/2012 7:06 PM
More..............

''Microwaving Water!
A 26-year old man decided to have a cup of coffee. He took a cup of water and put it in the microwave to heat it up (something that he had done numerous times before). I am not sure how long he set the timer for, but he wanted to bring the water to a boil. When the timer shut the oven off, he removed the cup from the oven. As he looked into the cup, he noted that the water was not boiling, but suddenly the water in the cup 'blew up' into his face. The cup remained intact until he threw it out of his hand, but all the water had flown out into his face due to the build-up of energy. His whole face is blistered and he has 1st and 2nd degree burns to his face which may leave scarring.

He also may have lost partial sight in his left eye. While at the hospital, the doctor who was attending to him stated that this is a fairly common occurrence and water (alone) should never be heated in a microwave oven. If water is heated in this manner, something should be placed in the cup to diffuse the energy such as a wooden stir stick, tea bag, etc, (nothing metal).

General Electric's Response:


Thanks for contacting us; I will be happy to assist you. The e-mail that you received is correct. Microwaved water and other liquids do not always bubble when they reach boiling point. They can actually get superheated and not bubble at all. The superheated liquid will bubble up out of the cup when it is moved or when something like a spoon or tea bag is put into it.

To prevent this from happening and causing injury, do not heat any liquid for more than two minutes per cup. After heating, let the cup stand in the microwave for thirty seconds before moving it or adding anything into it.

Here is what a local high school science teacher had to say on the matter: 'Thanks for the microwave warning. I have seen this happen before. It is caused by a phenomenon known as super heating. It can occur any time water is heated and will particularly occur if the vessel that the water is heated in is new, or when heating a small amount of water (less than half a cup).

What happens is that the water heats faster than the vapor bubbles can form. If the cup is very new, then it is unlikely to have small surface scratches inside it that provide a place for the bubbles to form. As the bubbles cannot form and release some of the heat that has built up, the liquid does not boil, and the liquid continues to heat up well past its boiling point.

What then usually happens is that the liquid is bumped or jarred, which is just enough of a shock to cause the bubbles to rapidly form and expel the hot liquid. The rapid formation of bubbles is also why a carbonated beverage spews when opened after having been shaken.'''

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#127
In reply to #124

Re: Is It Safe to Drink Water Boiled In a Microwave??

03/27/2012 7:21 PM

CR4 ADMIN: Deleted Post

Abuse/Attack: This post was deleted because it was an attack on another user. Please review the CR4 Site FAQ and the CR4 Rules of Conduct.

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#128
In reply to #124

Re: Is It Safe to Drink Water Boiled In a Microwave??

03/27/2012 7:21 PM

Ummm, yes. Did you read my post?:

"It is possible to superheat liquid on a hotplate, it's just easier and faster in a microwave."

The doctor was wrong about the metal, though, unless there are several metal objects close together, which would cause an arc.

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#169
In reply to #121

Re: Is It Safe to Drink Water Boiled In a Microwave??

03/28/2012 11:50 AM

[psst: for Bog's sake don't tell these folks that, like it or not, they themselves *emit* microwaves, IR, alpha particles, beta rays, an occassional gamma ray or two, neutrons and even (gasp!) three flavors of neutrinos!] -e

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#201
In reply to #121

Re: Is It Safe to Drink Water Boiled In a Microwave??

03/28/2012 8:45 PM

As far as I know no microwave manufacture states that microscope can be used for heating water for drinking.....and that should be with reason. Sounds weird, isn't it?? (forget about the scalding aspect for time being!)

On what scientific basis do you say

''If this scares you don't drink water that has been microwaved.''

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#207
In reply to #201

Re: Is It Safe to Drink Water Boiled In a Microwave??

03/29/2012 7:28 AM

What on Earth have microscopes got to do with anything on this thread?

[Edit: other than possibly for observing microbial activity]

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#212
In reply to #207

Re: Is It Safe to Drink Water Boiled In a Microwave??

03/29/2012 8:54 AM

Now stop picking at a contextually understandable error .... mushiness and hangovers are not immune to such bloopers!!

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#231
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Re: Is It Safe to Drink Water Boiled In a Microwave??

03/30/2012 8:00 AM

If you would actually take the advice already generously handed out that you get to know CR4 and its inhabitants a little better, you would already know that as well as educating each other on matters engineering & scientific, we also educate each other on spelling, grammar, context and proof-reading.

Stop being such a nasty poster.

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#211
In reply to #201

Re: Is It Safe to Drink Water Boiled In a Microwave??

03/29/2012 8:28 AM

Guessing that "microscope" is an error, that's still barking mad.

Consider a comparison to your line; 'As far as I know, no electric oven manufacture states that electric ovens can be used for roasting a chicken.....and that should be with reason'.

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#213
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Re: Is It Safe to Drink Water Boiled In a Microwave??

03/29/2012 12:15 PM

Would <whoever it is> care to explain why that's OT ?

I need to know by this evening, else (by the OP's logic) I won't be able to turn the lights on. The package didn't specify they were safe to use in dark conditions.

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#233
In reply to #213

Re: Is It Safe to Drink Water Boiled In a Microwave??

03/30/2012 8:05 AM

Wasn't me. But have removed it so you can sleep tonight...

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#237
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Re: Is It Safe to Drink Water Boiled In a Microwave??

03/30/2012 9:36 AM

Aw, that's most kind of you . Wasn't planning on loosing any sleep, but it takes a special level of cretinous troll to OT a post just because they don't like or understand it.

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#261
In reply to #213

Re: Is It Safe to Drink Water Boiled In a Microwave??

04/25/2012 1:41 PM

But... But...

I have a package right here. It says: "These bulbs must not be used in a dark room. If your room is dark, please energize these to repair the unsafe condition."

Gotta go change my Depends.

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#230
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Re: Is It Safe to Drink Water Boiled In a Microwave??

03/30/2012 7:56 AM

Perhaps because

  1. they assume a level of intelligence and common sense in customers to know they can heat plain wter if that is their desire
  2. they do not want laws suits when someone dies of heavy metal poisoning after "purifying" their water in the microwave
  3. they can not give an accurate setting requirement for all situations such that their lawyers could get them off if someone didn't boil the water long enough to kill the bugs
  4. they built microwaves to cook food. They don't have to cover every single thing you may (or may not) decide to put in it.
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#152
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Re: Is It Safe to Drink Water Boiled In a Microwave??

03/28/2012 7:16 AM

If there's a thread running already on askville, why is there one running on CR4 as well?

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#29

Re: Is It Safe to Drink Water Boiled In a Microwave?

03/26/2012 11:49 PM

Boiling water for treatment of bacterial contaminated water requires at least 1 minute of a rolling boil. The health unit near us issues boil water orders and specifies at least 5 minutes of a rolling boil. I think that is overkill but that is what they suggest in their boil water orders.

Water testing bottles are disinfected by gamma radiation techniques. And a good way to tell if the sample bottle has been properly disinfected is to observe the condition of the tablet they put in each bottle. The tablet is sodium thiosulphate and is pressed into a tablet. When the bottle with the tablet are exposed to gamma irradiation, the tablet is rendered to a powder. So seeing a powder in a sealed sample bottle is a good sign that the bottle has been properly disinfected. The purpose of the sodium thiosulphate, is to kill the chlorine at the time of sampling so it will not bias the test due to lab delays.

As for microwaving, I am sure if the temperature of the bottle is boiling or rolling for about 1 minute it will be the same as a stove top boiling for one minute.

One caveat to all boiling by whatever method, if the boil water is issued because of excessive bacterial contamination, then find another source of water that is not excessive or is already determined to be safe. Excessive bacteria can contain a lot of toxins from the lysed bacteria. These toxins will not be lethal but they can still give mild symptoms.

An alternative to boiling the water is to simply put about 4 drops of NSF approved sodium hypochlorite @ 5% (standard household bleach) in a liter of water stir and set it in the fridge for 20 minutes. Let the water stand for a longer period (2 or 3 hours) and all the chlorine will disappear. Easier than boiling and kills all bacteria.

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#42

Re: Is It Safe to Drink Water Boiled In a Microwave?

03/27/2012 7:39 AM

I found these other so called problems with the microwave.

Should keep you going for a while.

  1. Continually eating food processed from a microwave oven causes long term - permanent - brain damage by "shorting out" electrical impulses in the brain, de-polarizing or de-magnetizing the brain tissue.
  2. The human body cannot metabolize the unknown byproducts created in microwaved food.
  3. Male and female hormone production is shut down and/or altered by continually eating microwaved foods.
  4. The effects of microwaved food by-products are permanent within the human body.
  5. Minerals, vitamins, and nutrients of all microwaved food is reduced or altered so that the human body gets little or no benefit, or the human body absorbs altered compounds that cannot be broken down.
  6. The minerals in vegetables are altered into cancerous free radicals when cooked in microwave ovens.
  7. Microwaved foods cause stomach and intestinal cancer tumors. This may explain the rapidly increased rate of colon cancer in America.
  8. The prolonged eating of microwaved foods causes cancerous cells to increase in human blood.
  9. Continual ingestion of microwaved food causes immune system deficiencies through lymph gland and blood serum alterations.
  10. Eating microwaved food causes loss of memory, concentration, emotional instability, and a decrease of intelligence.

All myths

http://skeptoid.com/episodes/4080

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#59
In reply to #42

Re: Is It Safe to Drink Water Boiled In a Microwave?

03/27/2012 10:04 AM

There was a well documented case in Utah where a woman had surgery scheduled and was able to have her own blood collected for the operation. During the operation they used her blood but near the end they needed the last bag and it had not been warmed so someone popped it in the microwave and heated it to the proper temp. Upon giving her her own blood she died as her body did not recognize the microwaved blood. Like I said it is well documented even the law suit. I have goggled it several times to show friends. Key words for Google -- microwave blood, Utah, Woman died etc.

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#85
In reply to #59

Re: Is It Safe to Drink Water Boiled In a Microwave?

03/27/2012 11:37 AM

As someone said elsewhere, it was not the microwaving per se that damaged the blood it was being heated too quickly and to too high a temperature. Had they left the blood in a pan of boiling water, the same sad outcome would have occurred.

The blood should have been warmed slowly and gently to body temp. As explained previously, microwaves don't heat evenly, so some parts of that packet would have boiled.

I would say the root cause was not ensuring all the blood was ready for use.

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#99
In reply to #85

Re: Is It Safe to Drink Water Boiled In a Microwave?

03/27/2012 1:24 PM

While working in a shipyard, A friend of mine who worked in a shipyard on the east coast (US). There, a technician that worked on the RADAR unit on the Naval ship being built, He did not LOTO to the equipment. Unknown to him, that very same day. They were scheduled to run test on the RADAR unit.

It wasn't pretty.

Here is some info about your post.

http://www.ncbi.nlm.nih.gov/pmc/articles/PMC1511900/pdf/califmed00203-0104.pdf

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#97
In reply to #59

Re: Is It Safe to Drink Water Boiled In a Microwave?

03/27/2012 1:15 PM

May be it was just her time, we may never be sure about her death, or it was indeed the "cooked" blood

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#60
In reply to #42

Re: Is It Safe to Drink Water Boiled In a Microwave?

03/27/2012 10:11 AM

Then what is the FACT????

Good that some folks here said the subject is under intensive research..I would rather prefer to avoid microwaved water till something confirms its safety--- lest some day docs. happen to discover a carcinogenic imp eating away my life!!

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#193
In reply to #60

Re: Is It Safe to Drink Water Boiled In a Microwave?

03/28/2012 6:18 PM

"I would rather prefer to avoid microwaved water till something confirms its safety"

Living in fear of all the things that can kill you, will kill you. Mazhur, because of your worry over even potential-but-unverified dangers (your not being content, apparently, to just stress over the Real Ones) you are more a danger to yourself right now than microwave-heated water will ever be. Stress kills.

Think about addressing your fears first, then sweat the small stuff, in that order.

Just sayin'.

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#194
In reply to #193

Re: Is It Safe to Drink Water Boiled In a Microwave?

03/28/2012 6:26 PM

Am I in a 'psychology class"??

Let's talk science before fear overtakes....I am already living in a terror-ridden zone on this earth so fear is natural!!

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#195
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Re: Is It Safe to Drink Water Boiled In a Microwave?

03/28/2012 6:31 PM

You speak as if you have no choice about your response. As long as you have a pulse, you have a choice. A threat you may have no control over, but how you respond to that threat is up to you. Not psychology, just plain horse sense.

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#196
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Re: Is It Safe to Drink Water Boiled In a Microwave?

03/28/2012 6:40 PM

Can't we stay on topic please??

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#198
In reply to #196

Re: Is It Safe to Drink Water Boiled In a Microwave?

03/28/2012 7:42 PM

Sure, why not? Sorry to intrude.

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#199
In reply to #198

Re: Is It Safe to Drink Water Boiled In a Microwave?

03/28/2012 7:54 PM

Thanks

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#61
In reply to #42

Re: Is It Safe to Drink Water Boiled In a Microwave?

03/27/2012 10:14 AM

Swallowing saliva causes cancer. But only after frequent swallows over a long period of time.

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#72
In reply to #61

Re: Is It Safe to Drink Water Boiled In a Microwave?

03/27/2012 11:03 AM

I choose to drool...it makes annoying people stay away as well...

But now I have lip and lap cancer

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#74
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Re: Is It Safe to Drink Water Boiled In a Microwave?

03/27/2012 11:06 AM

This thread is giving me brain cancer.

Or maybe it's just a headache from all the insanity.

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#173
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Re: Is It Safe to Drink Water Boiled In a Microwave?

03/28/2012 12:07 PM

In my original post to this thread, I said "I wonder if the question was asked to determine if anyone on the forum had a sense of humor. You have proved that someone on this forum has a sense of humor.

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#267
In reply to #42

Re: Is It Safe to Drink Water Boiled In a Microwave?

06/11/2012 2:32 PM

(In searching for a place to put a comment about microwave ovens and food value, this turned out to be the closest thread in relevancy. And the comment where it is being placed is the vector of relevance.)

I don't remember the first thought I had today that set me off on a search that led me to this article. But it then served to set me searching further. It is similar in tone to the one linked in the above comment. Both articles tend to make the claim of microwave effects on food laughable. I think the truth lies somewhere between "no effect" and "some." Here's why.

Just searching for a few minutes I found at least one article/paper in "The Journal of the Science of Food and Agriculture," that would tend to support the claim that microwave prepared/heated food loses more nutritive value as opposed to conventional methods. (full paper here.)

Certainly this isn't proof of all the detrimental claims about using microwave ovens to heat/cook food. But it is an indicator for the need for further research.

I found that just in this one journal (which can be searched here ) there is more research than I imagined concerning microwave technology and food value. Which is why I would suggest that the truth lies somewhere between no detrimental effects and "some." A case for "no effect" is in a paper in this same journal entitled: "Comparative study of the nutritive value of casein heated by microwave and conventionally," which found no change in the nutritive value of casein protein when heated by microwaves vs. conventional methods.

Because there have been health declines and changes in the last couple of decades or so, (childhood diabetes, for instance, as well as obesity in general) the proposition that microwave cooking/heating might be contributory can't be dismissed scientifically. Just because we've all used microwaves for the past 30 years or so, doesn't prove there is no meaningful effect. It may be relatively benign and the long-term effect less than our current lifespans. We are all going to die of something. But it might also be one of many contributing factors that hurt our health. Most of us do use microwave ovens. But sweeping claims in either direction seems premature to me. The critical articles don't really cite research to prove the safety. (I don't know if a human study can separate out all of the potential variables. There are so many. Animal studies may be the most promising direction for that reason. The environment and lifestyle can be more rigorously controlled. Lifespans are much shorter, too. And there may even be epigenetic effects.)

For anyone who is interested enough in the topic, there are scientific-based journals to search through for "microwave," "food," etc. There is more to researching this topic than a quick surf of the net via standard search engines. Many of these papers and scientific articles don't come up with a "standard" Google-type search. And the research is specific enough that you have to at least look at the abstract to get an idea of how pertinent it might be to the question of nutritive value vs. type of cooking method. A better search engine for scientific studies is Google Scholar. And IT shouldn't be the only resource for research.

Before we dismiss the "has an effect" perspective, totally, I think we need to dig deeper for research and wait for more research results to get closer to the truth. If I find anything further I'll post in this thread. I hope other searchers will do likewise -- pro or con.

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#46

Re: Is It Safe to Drink Water Boiled In a Microwave?

03/27/2012 8:23 AM

For a lot of information on water take a look at this. (http://www.disclose.tv/action/viewvideo/40369/Water___The_Great_Mystery__Part_1_/))

It appears that there is a lot of research going on in this field. Fascinating to say the least and depending on the accuracy of the information.

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#48

Re: Is It Safe to Drink Water Boiled In a Microwave?

03/27/2012 9:28 AM

I've been waiting for a microwave subject to ask this question. Is heating water by microwave more efficient than heating water by an eletric heat source? The direction I'm looking at is using microwaving as a heat source for electric automobiles to warm the passenger compartment or in a house that uses radient heat.

Thanks

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#49
In reply to #48

Re: Is It Safe to Drink Water Boiled In a Microwave?

03/27/2012 9:34 AM

It's more efficient - provided the occupant(s) don't get cooked.

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#174
In reply to #48

Re: Is It Safe to Drink Water Boiled In a Microwave?

03/28/2012 1:02 PM

Let's leave people out of the room, as they would be cooked by the microwaves.

A 1200 watt microwave would heat a room exactly as much as a 1200 watt space heater. Here's why:

Only about 50% of the electricity used in a microwave is converted to microwaves. However, nearly all the microwave energy goes into the task at hand, say heating water. The other 50% of the electricity is lost as heat to the room.

A hotplate (or space heater) is 100% efficient at producing heat. All the electricity goes into making heat. However, if the desired result is heating water, the actual efficiency will be much lower. Heat conduction may be poor, a big heavy pot may have to be heated etc. So in this case, maybe 25% of the electricity goes to heating the water, the rest is wasted heating other things like the air.

This is why people think microwaves are more efficient. An immersion heater in a very well insulated cup will be close to 100% efficient, much more efficient than a microwave. But a hotplate heating an open pan, not so much.

If you are just heating air, both a space heater and a microwave will be 100% efficient. The microwave would be the "Rube Goldberg" method of heating.

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#58

Re: Is It Safe to Drink Water Boiled In a Microwave?

03/27/2012 10:04 AM

Yes, in moderate quantities.

Caution; contents may be hot.

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#62

Re: Is It Safe to Drink Water Boiled In a Microwave?

03/27/2012 10:19 AM

Heating water in a microwave is INSANELY DANGEROUS!

As Phoenix mentioned above the water can flash (explosively). Many people get scalded by the hot water and receive terribly disfiguring burns and later scars, usually on the face, neck, arms and chest.

My wife who is has been a Registered nurse for 35 years can attest to this. She used to work in a hospital Emergency Room for a number of years as well as the ICU and Burn Unit at Westchester Medical Center (north of NYC). She's seen literally dozens and dozens of victims as a result of microwaving water. Some of the worse (and most sad) were small kids.

DON'T DO IT!!!!!!!

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#76
In reply to #62

Re: Is It Safe to Drink Water Boiled In a Microwave?

03/27/2012 11:09 AM

WTF are you talking about? You so crazy...or did you forget to check the "off-topic" box?

If the water "flashes" how is it getting out of the microwave? Are you using one of those fancy table top units with no case or door (assuming the "flash" of superheated steam is even possible).

I'd like a good solid reference to a news article on this claim...else I am taking great risk of death by heating the water for my morning oatmeal for the last 25 years...it's obviously only a matter of time

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#91
In reply to #76

Re: Is It Safe to Drink Water Boiled In a Microwave?

03/27/2012 12:13 PM

WTF are you talking about SIR?

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#92
In reply to #91

Re: Is It Safe to Drink Water Boiled In a Microwave?

03/27/2012 12:17 PM

WTF are you talking about SIR?

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#95
In reply to #92

Re: Is It Safe to Drink Water Boiled In a Microwave?

03/27/2012 12:48 PM

I'm just guessing, but here goes...

WTF=wiggle tiny forks, or why try figs?, or 0 (if an equation, where W=water weight (units do not matter), T=surface tension (of the person getting upset), and F=freq. of the microwave), OR, WTF?? (which is redundant), and so on and so on... or is that sew on and sew on? Doh! a deer, a femme fatale deer... (HELP, I'm caught in a tangential word vortex... or is that tangential word fit; in which case it would be TWF... I'm melting, I'm melting... )

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#146
In reply to #95

Re: Is It Safe to Drink Water Boiled In a Microwave?

03/28/2012 6:28 AM

Silly! WTF stands for Wednesday, Thursday, Friday. Just like TWT stands for Tuesday Wednesday, Thursday.

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#175
In reply to #146

Re: Is It Safe to Drink Water Boiled In a Microwave?

03/28/2012 1:40 PM

I stand corrupted.

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#208
In reply to #175

Re: Is It Safe to Drink Water Boiled In a Microwave?

03/29/2012 7:57 AM

We already knew that.

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#217
In reply to #208

Re: Is It Safe to Drink Water Boiled In a Microwave?

03/29/2012 4:30 PM
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#218
In reply to #217

Re: Is It Safe to Drink Water Boiled In a Microwave?

03/29/2012 4:40 PM

First anonymous poster said "Ugh!"

second anonymous poster said "Ugh!"

first anonymous poster said "Ugh! Ugh"

second anonymous poster said "do not chang em subject"

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#236
In reply to #218

Re: Is It Safe to Drink Water Boiled In a Microwave?

03/30/2012 8:10 AM

Fourth Anonymous Poster used the "Shift" key and said GA.

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#93
In reply to #76

Re: Is It Safe to Drink Water Boiled In a Microwave?

03/27/2012 12:39 PM

The "flash" is more like a volcanic eruption.

Back in high school, my chemistry teacher did a small demonstration. The set up was simple. Two flasks with water both heated by a large flame. One flask had boiling chips the other didn't.

As the water heated the one with boiling chips began to bubble gently as expected. The other displayed no sign of boiling yet.

He then took a boiling chip and dropped it in the flask without any. The result was a volcano like eruption as some of the water flashed. It wasn't "blow up in your face" or extremely violent. In his demonstration I remember some of the liquid making it a few inches above the flask opening and onto the bench.

If the container the water is being heated in has no nucleation sites, there is a chance of some of the water to become superheated and cause this type of thing to happen.

A quick search on youtube came up with this simliar demonstration.

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#94
In reply to #76

Re: Is It Safe to Drink Water Boiled In a Microwave?

03/27/2012 12:47 PM

doesn't happen every time. only when conditions are right.

What keeps it under pressure is Surface Tension didn't you review the post (my post) that he referred to. Even though, the surface tension is lower on hot water than cold.

But what usually happens is when your heating up a cup of coffee in a microwave.

Usually what causes it to flash is when you break the surface tension not by moving it out of the microwave, but with a spoon or you lips. Hey, this thread can really get legs if we start talking about Surfactants.

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#96
In reply to #94

Re: Is It Safe to Drink Water Boiled In a Microwave?

03/27/2012 1:06 PM

doesn't happen every time. only when conditions are right.... very true

I saw your post about surface tension and agreed. I was reading some disbelief about this type of thing happening and only added my post and the link to help clear things up. I thought that if one could actually see it happen there will be less question about whether or not the phenomenon is real.

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#98
In reply to #96

Re: Is It Safe to Drink Water Boiled In a Microwave?

03/27/2012 1:19 PM

I heard about it in the 70's, and as a teenager, I try to reproduce it, but couldn't.

I, as a teenager enjoyed coffee, and was warned about it.

But as a engineer in the food industry, I came about learning more and more about chemistry, biology, types of bonds. it was quite interesting.

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#105
In reply to #94

Re: Is It Safe to Drink Water Boiled In a Microwave?

03/27/2012 3:15 PM

I have seen this experiment several times and here is one you tube example. http://www.youtube.com/watch?v=2FcwRYfUBLM I have also had associates claim it happened to them with no serious injury.

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#101
In reply to #76

Re: Is It Safe to Drink Water Boiled In a Microwave?

03/27/2012 2:53 PM

I am not sure which "Anonymous" to respond to...so I'll reply to myself.

First off, I am not a sir...I work for a living

Second, I asked for a good solid reference to the claim that one should not boil water in a microwave. I mean...really...seriously...is the poster suggesting that microwaves should come with warning sticker that says do not boil water as it may cause a superheated steam explosion and damage life and property? Really?

That is Wh@t T F*** (for unlawful carnal knowledge)

If OMG is acceptable, then WTF should be too.

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#103
In reply to #101

Re: Is It Safe to Drink Water Boiled In a Microwave?

03/27/2012 3:07 PM

That's Mr. "Anonymous" to you.

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#106
In reply to #103

Re: Is It Safe to Drink Water Boiled In a Microwave?

03/27/2012 3:42 PM

Right...sorry...

I would still need to see for myself, whether it's in a YouTube, or a professinoal journal or live experiment...whatever...where a residential microwave can be used to create superheated or saturated steam. I am sure the industries using these elements would love to hear the results.

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#104
In reply to #101

Re: Is It Safe to Drink Water Boiled In a Microwave?

03/27/2012 3:13 PM

cuba_pete:

For one thing, "Anonymous" should be taken with the same weight, especially with a WFT response. none.

I mean...really...seriously...is the poster suggesting that microwaves should come with warning sticker that says do not boil water as it may cause a superheated steam explosion and damage life and property?

Yes,

Really?

and yes

We did and have given references as to the physical evidence of what can happen. Usually with scientific evidence one can extrapolate the posible results.

Though if your looking for actually instances, no we did not give you a link.

Is that what your looking for?

CaptMoosie wife had actual experience as a nurse, that in itself would be good enough for me. Dealing with people that had the bad experience with super heated liquid and nothing for Nucleation to take place.

But thats not for everybody?

Is snoops ok?

http://www.snopes.com/science/microwave.asp

or do you want an event with names, dates, casualities and next of kin?

PS as far as heating the hot water for your oatmeal, like mentioned, the conditions were not right.

i.e. the water was not heated hot enough or

you had contaniments (high mineral content) in you water for Nucleation to take place as you were microwaving it or

you were very lucky something convened that nucleation did take place.

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#130
In reply to #104

Re: Is It Safe to Drink Water Boiled In a Microwave?

03/27/2012 7:35 PM

No...secondhand "stories" from someone's wife is not good scientific evidence...no offence Captain...really, no offense at all.

You all have to agree...from the perspective that this is an engineering forum that hard and fast evidence is necessary and we cannot rely on internet rumors or he/she said type stories. I really do not think we need someone all-capping us to death saying we should not heat water in a microwave unless we are willing to risk our lives.

If we are talking "high mineral content" as normal tap water...then I suppose that again rules out the average home appliance.

I am more than willing to test this hypothesis if you would provide the normal "conditions" necessary for me to "super heat" water in a residential microwave oven which would warrant such dire warnings.

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#139
In reply to #130

Re: Is It Safe to Drink Water Boiled In a Microwave?

03/28/2012 12:38 AM

This is an engineering forum, but we're not all anal. Hell look at this thread. If that's not enough look at 'bath breaking techniques' I offer some links that is somewhat acceptable, but i get the feeling You don't believe it until It blows up in your face for proof, for with I will not give you direction to. Because I don't know you from a rodeo clown. Conditions, do you even understand what nucleation is? Unfortunately, there is enough links posted for you to do so

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#148
In reply to #139

Re: Is It Safe to Drink Water Boiled In a Microwave?

03/28/2012 7:03 AM

If that's not enough look at 'bath breaking techniques'

If only that were still possible..... The CR4 Archives are not publically available.

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#161
In reply to #139

Re: Is It Safe to Drink Water Boiled In a Microwave?

03/28/2012 10:29 AM

I'll take that as a compliment since rodeo clowns are bad mo f'rs.

I have had several things blow up in my face but all incidents were purely unintentional and not very scientific in the method.

I understand nucleation but since I have no way to (presently) supercool nor superheat (in a microwave) a sample of water I cannot see a way forward.

'scuse me...it's time for my oatmeal...seriously...

Pray for me

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#164
In reply to #161

Re: Is It Safe to Drink Water Boiled In a Microwave?

03/28/2012 11:03 AM

I think you fall into the "not" category....

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#177
In reply to #164

Re: Is It Safe to Drink Water Boiled In a Microwave?

03/28/2012 2:11 PM

I haven't been accused of being a duffer yet...but here in the republic we refer to old men as such.

We have other names for the honorably titled mentally retarded and developmentally disabled...but I think it is an insult to those naturally afflicted...and a step up from duffer.

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#209
In reply to #177

Re: Is It Safe to Drink Water Boiled In a Microwave?

03/29/2012 7:58 AM

I think the phrase should be the Motto of the Darwin Awards...it's sums up their aims succintly!

No offence meant to any of those you mentioned. "Duffer" in early 20th century England meant someone not much good at something (or anything in extreme cases).

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#166
In reply to #161

Re: Is It Safe to Drink Water Boiled In a Microwave?

03/28/2012 11:15 AM

Rodeo clowns are one of the most respected fixtures in the rodeo circuit. Enjoy Your oatmeal

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#160
In reply to #130

Re: Is It Safe to Drink Water Boiled In a Microwave?

03/28/2012 10:28 AM

I have personally experienced the superheating of water in a home microwave on more than one occasion. I heated water in a coffee mug, and when I took it out and added a spoonful of hot chocolate powder, it violently splattered and bubbled. (Thankfully I was not burned.) There are numerous reports about this phenomenon on the Internet and other resources. It doesn't happen every time, but it certainly can, and I can see how it could hurt someone. I wouldn't say that it is severe or frequent enough to justify not heating liquids in a microwave - you just need to be observant and careful if no bubbling is present.

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#77

Re: Is It Safe to Drink Water Boiled In a Microwave?

03/27/2012 11:17 AM

I already take precautions when I microwave water, the standard instructions tell you to let anything rest for a minute before using. The microwave will also excite oils and fat. Try cooking a whole egg in the thing, exploding yolks are spectacular but the cleanup is said to be messy.

P.S. Scrambled eggs are okay.

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#89
In reply to #77

Re: Is It Safe to Drink Water Boiled In a Microwave?

03/27/2012 11:59 AM

they might be okay, but they taste awful!

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#167
In reply to #77

Re: Is It Safe to Drink Water Boiled In a Microwave?

03/28/2012 11:32 AM

We had a hard boiled egg in the fridge. My lovely wife asked if she could heat it in the microwave. I said, sure, if you want it to explode. So, naturally she ignored me.

The heating went fine, she took it out of the microwave and took about 5 steps towards the dining room with a smug look on her face, before it went off. Pretty dramatic, no piece left was bigger than a pea.

I think that was the only time I have been right about something in our marriage, and that was only because there were witnesses.

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#171
In reply to #167

Re: Is It Safe to Drink Water Boiled In a Microwave?

03/28/2012 11:58 AM

If you were in the middle of the forest and spoke; would you still be wrong?

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#202
In reply to #167

Re: Is It Safe to Drink Water Boiled In a Microwave?

03/28/2012 9:46 PM

i bet her memories of the incident are different

"why did you tell me it was okay to put an egg in the microwave!"

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#203
In reply to #167

Re: Is It Safe to Drink Water Boiled In a Microwave?

03/29/2012 2:28 AM

"I think that was the only time I have been right about something in our marriage, and that was only because there were witnesses."

Get a small, easily-concealed recorder and keep it with you - if only for your own sanity.

Are any of the following true? (don't answer here. I tried to PM you but CR4 says I've tried some operation too many times. WTH?)

1) You're viewed as either overly good or overly bad (a process called 'splitting');

2) You have been the focus of unprovoked anger or hurtful actions, alternating with periods when she acts perfectly normal and maybe even very loving;

3) Things that you have said or done have been twisted and used against you;

4) You are accused of things you never did or said (hence the recorder);

5) You often find yourself defending and justifying your intentions;

6) You find yourself concealing what you think or feel because you are not heard;

7) You feel manipulated, controlled, and sometimes lied to;

8) You are told one thing and five minutes later told that you were never told that, that it was never said and you're just trying to start a fight (this is one form of what is called 'gaslighting');

9) She has a private face (behaviour only you see) utterly different from her public face (behaviour that others see outside the home). One result is that when you try to seek advice (or comfort), your take on things is discounted because others always see her as being a really nice, sweet or helpful person who has your best interests at heart. Only you see The Dark Side. Outside the home she's an Angel of Light. When she's sure nobody is looking, the mask falls off and she is Satan Incarnate;

Do any of these sound familiar? This thing has a name. Several, actually.

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#204
In reply to #203

Re: Is It Safe to Drink Water Boiled In a Microwave?

03/29/2012 3:48 AM

You met my girlfriend?

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#232
In reply to #203

Re: Is It Safe to Drink Water Boiled In a Microwave?

03/30/2012 8:01 AM

Most of this (the last one a little less) happens to me at work....

I've also been in a relationship with a man who did all these things. Being <insert epithet of choice> isn't confined to the female of the species...

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#83

Re: Is It Safe to Drink Water Boiled In a Microwave?

03/27/2012 11:28 AM

I can no longer stand this insanity. I'm going back to my office. If anything interesting, or logical comes along, you know where to find me.

Cheers.

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#90

Re: Is It Safe to Drink Water Boiled In a Microwave?

03/27/2012 12:09 PM

"I have a cast-iron microwave that I'd lime to get rid of...." - Kris.

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#102
In reply to #90

Re: Is It Safe to Drink Water Boiled In a Microwave?

03/27/2012 3:00 PM

Fill it with water and explode it....

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#116
In reply to #90

Re: Is It Safe to Drink Water Boiled In a Microwave?

03/27/2012 5:39 PM

I'm gonna tell my water about you - it's well 'ard ! Del, hold it's coat....

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#107

Re: Is It Safe to Drink Water Boiled In a Microwave?

03/27/2012 3:51 PM

Okay gentlemen, stop quibbling and read this interesting report about Microwaves impact on Water before you have to learn German to understand better!

The Impact of Microwaves on Water

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Frank Robert- Belewsky High-frequency pulsed microwave radiation interferes with the natural electro-magnetic integrated power grid of water. As a result the hydrogen bonds are breaking, the structure of water is becoming destabilised and the microbiology is being thrown off balance. With worldwide mobile telephony the entire water household of Planet Earth and of all living organisms is affected. This has severe implications, for there is no life without water. Water does not only quench thirst, but it also plays a role in cell-to-cell communication, metabolism, it binds cell structures together, and it is needed to flush out waste material and poisons. All these natural capacities of water or affected by the microwave technology

http://www.naturalscience.org/index.php?id=51

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#108
In reply to #107

Re: Is It Safe to Drink Water Boiled In a Microwave?

03/27/2012 3:56 PM

What a crock of $h!T.

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#110
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Re: Is It Safe to Drink Water Boiled In a Microwave?

03/27/2012 3:58 PM

I only thought of that....but, unlike you.....I didn't post it.

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#111
In reply to #108

Re: Is It Safe to Drink Water Boiled In a Microwave?

03/27/2012 4:02 PM

That's "what a crock of $h!T SIR" to you.

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#112
In reply to #108

Re: Is It Safe to Drink Water Boiled In a Microwave?

03/27/2012 4:05 PM

Bah! Don't you think you are being unappreciative of research?? That's the least anyone would expect of a Guru !!.

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#113
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Re: Is It Safe to Drink Water Boiled In a Microwave?

03/27/2012 4:22 PM

I eagerly await the rest of this conspiracy theory. My guess is that it will be revealed that the CIA altered the microwave to harm us.

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#157
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Re: Is It Safe to Drink Water Boiled In a Microwave?

03/28/2012 10:21 AM

Such a conspiracy is in keeping with the Obama health insurance mandate. Everyone uses a microwave; everyone will need health insurance.

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#119
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Re: Is It Safe to Drink Water Boiled In a Microwave?

03/27/2012 6:41 PM

That piece of tripe you posted is an insult to anybody with some common sense and a modicum of intelligence.

This thread, and you, have morphed into a joke.

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#122
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Re: Is It Safe to Drink Water Boiled In a Microwave?

03/27/2012 6:56 PM

I was trying to follow this thread but it has morphed into a silly discussion about a microwave conspiracy. I wish the evidence posted was factual and based on some sort of real science. I would like to say boiling water will work as long as the water isn't excessive in bacteria fore reasons I posted earlier. Microwaving will also work but if it is five minutes of rolling boil that you need, the water may have to be microwaved over several stages to prevent a mess in the MW oven. Microwaving will not liberate hydrogen nor alter the water molecule except by temporary excitation. Chlorinating the water will work for those who are afraid of the microwave ovens and it is a lot cheaper. GA for your down to earth responses.

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#172
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Re: Is It Safe to Drink Water Boiled In a Microwave?

03/28/2012 11:59 AM

From time to time I have been accused of being one of those intellectuals that lacks common sense.... after having felt insulted by the posting you mention I feel more assured this is not the case. Thanks!

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#206
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Re: Is It Safe to Drink Water Boiled In a Microwave?

03/29/2012 7:24 AM

I am sure we would all like to see the research done by this organisation. As they refer to the microbiology being disturbed by pulsed high frequency microwaves it is clear they are not talking about drinking water in a microwave oven. You should start a new topic where you can present the full conclusion or a link to the research paper. It would be a concern to us all if there is prove of enough irradiation in the atmosphere where we live to disturb the microbiology of our ponds and rivers, not to mention the effect on the fish.

Jim

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#131
In reply to #108

Re: Is It Safe to Drink Water Boiled In a Microwave?

03/27/2012 7:36 PM

Now we're splitting atoms with a Maytag...who would've thunk it!?!

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#219
In reply to #108

Re: Is It Safe to Drink Water Boiled In a Microwave?

03/29/2012 4:47 PM

And I thought we were talking water... a crock of S**t, if left long enough in the microwave would probably burst into flames.

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#225
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Re: Is It Safe to Drink Water Boiled In a Microwave?

03/29/2012 8:17 PM

But would it be safe to drink?

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#114
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Re: Is It Safe to Drink Water Boiled In a Microwave?

03/27/2012 5:25 PM

I tried to stay away... and lookit what we have here:

Our friend Frank Robert Belewsyk says: "High-frequency pulsed microwave radiation interferes with the natural electro-magnetic integrated power grid of water. As a result the hydrogen bonds are breaking, the structure of water is becoming destabilised..."

The solution to making Brown's Gas/HHO/MagnaGas. Wealth without bounds! I claim this in the name of LynDoor™ Industries! It appears this operation may work with SSD solution as well. Easy street here we come!

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#125
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Re: Is It Safe to Drink Water Boiled In a Microwave?

03/27/2012 7:16 PM

Dam!...I was this () close to greatness...

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#147
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Re: Is It Safe to Drink Water Boiled In a Microwave?

03/28/2012 6:36 AM

You'd best be first to file, then....

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#126
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Re: Is It Safe to Drink Water Boiled In a Microwave?

03/27/2012 7:20 PM

I just don't know how you can have the stupidity to come onto an site like this (CR4), and cite a "paper" published on a site which (among other gems) has this:

... and this:

... under two of the hopepage tabs.

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