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Boiling water
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EGGARY
Posts: 1,222
I thought I would calibrate the BGE Thermometer. So I am waiting for the water to boil.
Does boiling water go higher than 212 degrees ?
I am not into science.
Thanks.
Gary
Does boiling water go higher than 212 degrees ?
I am not into science.
Thanks.
Gary
Comments
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negative
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Nope, not unless you add something to it.
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If H20 is below 212F it is a liquid - generally referred to/by me as water.
If H20 is above 212F is a gas - generally referred to/by me as steam.
Boiling water is roughly at 212F slightly different depending on altitude (due to atmospheric pressure). Boiling water stays boiling (at 212F) until it has converted completely to steam at which point your pot of is empty and quite likely very very hot..
If H20 is below 32F it turns to a solid generally referred by/to me as ice.
This is my view and I am sticking with it... -
I believe it does get a little hotter in a pressure cooker....
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Actually the water converts to steam and can continue to get hotter... So in a pressure cooker you are likely cooking with alot of steam as well as some boiling water which remains at 212!!
The point of steam is that you can continue to heat it but as the temp rises so does the "pressure" thus you are not only steaming the food, but steaming it under pressure. There are some more physics to pressure cooking to I believe.
Thats my opinion (and science lesson for the day) and I am sticking with it!! -
yea I guess thats right, but it boils at 214F, 1000 feet below sea level.....
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top of page, click on the cookbook, drop down, boiling point calculator for the amost accurate setting.
But what is a couple of degrees among friends? -
Are you trying to boil the water in the Egg? :S
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Actually the pressure raises the boiling point. Think of the cooling system on an automobile - 14lb cap on radiator keeps the liquid from boiling under 260 degrees.
Vacuum has the opposite affect - think of "evacuation" in a HVAC freon system. Apply a vacuum to the sealed system to boil the moisture (boil at 70 degrees) following a repair that allowed the freon to escape.Kent Madison MS -
If it does it's called steam.
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Many of the answers here are close to being right, but all seem to miss one point or another.
Water (pure water with nothing suspended or dissolved in it) will change physical state to a gas (that's commonly called boiling) at 100°C (212°F) under standard pressure (1 atmosphere, 1000 millibars Hg).
As one raises the ambient pressure, the temperature at which water will change physical state to a gas (boil) will also rise - think Death Valley . Conversely, as the ambient pressure drops (think higher altitudes), the temperature at which water changes state to a gas will drop. To the extent weather systems change the ambient pressure (think low/high pressure systems), the weather can also have an affect on the boiling point.
The relationship between the ambient pressure and the boiling point is why boiling point calculators need to the ambient pressure as an input. -
Well, yes, I would say technically you are correct, but for the purposes of this question I think you've gone and added about 98% too much information.
Let's all confuse the poor guy - he just wants to check the set point of an analog thermometer that isn't marked in single degree gradients to begin with. There is absolutely no point in deciding that "well, today the barometric pressure is 29.7413 and I am 172.61 feet above sea level, so my personal boiling point of the day is 212.3 degrees" - for multiple reasons. The biggest reason is that the water you are boiling isn't pure anyway. It has additives and minerals and other stuff in it that alters the boiling point and you have no idea what is in there or how it will change the boiling point. And secondly, you only need to get reasonably close when calibrating the thermometer.
Boil water, stick the thermometer in, and if it appears to be close to 212 then you're good to go. If not, turn the nut on the back until it does appear to be close to 212. If it's off by a few degrees on either side it isn't going to affect the cooks any. -
We will find ANYTHING to argue about, won't we? :laugh:
Okay, so I've got two spheres of equal size, but unequal weight. If I drop them at the same time from the roof of my house, which one will hit the ground first?
...ready? Discuss. -
Does the boiling point of water get above 212? Yes, if you are located below sea level and the weather is clear and the air pressure is high. Death Valley (282 feet below sea level) on a pleasant day would have a boiling point of about 213 degrees. The Red Sea is about 1200 feet below sea level. (Just thought I'd throw that in...)
The boiling point of water varies depending on air pressure. Differences in air pressure due to the weather are fairly small, and you don't need to worry. Differences in air pressure due to your elevation are significant. If you live in Denver, the boiling point of water is around 202 degrees.
So, if you live at a reasonably normal elevation, you don't need to worry about the boiling point of water being far off from 212. A few degrees isn't going to affect your cooking whatsoever. If you live at 7000 feet, you might want to take it into consideration since it could mean the difference between trying to keep your cooker at 225 degrees vs. 212 degrees.The Naked Whiz -
[not enough information supplied to answer the question] :laugh:ed egli avea del cul fatto trombetta -Dante
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Since when has that ever stopped us?
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The red one. Red is always faster.
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Ah yes, Newton's Thermapen Corollary.
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Actually, the water in a pressure cooker is well above 212 degrees. That's the reason why you cook with the higher pressure. It raises the boiling point of the water and allows things to cook faster than if you had them in boiling water in an open pan.The Naked Whiz
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I stand corrected. Under pressure the boiling point does go up.
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Yep I agree...
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1000 feet below sea level? are you on your porch at your condo on the Dead Sea?
even then your bbq thermometer would be off two degrees. a negligible amount with virtually no effect on your cook :ermm:ed egli avea del cul fatto trombetta -Dante -
I calibrated the BGE Thermometer. I ordered a Thermometer from Tel Tru this morning.
I hope that helps.
Gary -
i live at 7000 feet. i consider myself reasonably normally elevated.
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We use eggs for BBQ. Typically a variation of 10F or so won't make a lick of difference. It's done when it's done. LOL. Some funny answers here though. I checked mine he other day and it was off by about 15. Heck I couldn't even figure out how to change it. Didn't look like it was possible.
I just left it as is and continued cooking. Have done okay too. -
Ooops - you're right and I should have simply answered, "Yes".
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