How cold does it take for frosbite to happen?

[Vivaldi]

How cold does it take for frosbite to happen?

[RebelinSteel]

It’s around -5c, however if the outside air temperature is -5c it may be actually colder, as that does not take into account wind chill. Also things such as wet fingers, face and reynauds can all make the chances higher. With windchill factor taken in to account, the actual outside air temperature can be say -1c but with a 20mph wind, it’s -7c. People greatly underestimate the impact of windchill.

[IslaTheWitch]

in any temperature when the water freezes, which means equals or below 31F (-0.55C)... Frostbite is skin damage caused by freezing temperatures.

In short, because of the low temperature, the body narrows blood vessels to save warmth for crucial organs (hands, feet, nose, and earlobes are not crucial for survival).

In effect, warm blood is not coming there, and the temperature of extremities is dropping down to the temperature of the environment. Because it's freezing, the water inside the tissue is freezing into crystals and damages the tissue... In addition, a lack of blood means a lack of oxygen, so if it takes longer, the extremities' tissue will die...

[Vivaldi]

Our freezing point is same as pure water?

[IslaTheWitch]

Up to 60% of the human adult body is water.

The brain and heart are composed of 73% water, and the lungs are about 83% water. The skin contains 64% water, muscles and kidneys are 79%, and even the bones are watery: 31%.

[WindAtMyBack]

It's not about temperature so much as length of time and some other factors (for example if the body is wet).

It can happen when it's barely below freezing temperature (below 0C or 32F). But the colder it is the less time it will take and the more likely it will happen.

[Vivaldi]

At minus 3-4 degrees celcius, even Water can not freeze when I put it in bottle or glass outside.

There is a reason our deep freezer is at minus 18 degrees celcius.

[WindAtMyBack]

If it's pure water, it will freeze at anything below 0C. It might take a long time though. If it's not pure water, it might have to be much below 0 to freeze.

[Vivaldi]

It is drinking water.

How cold does it take for it freeze.

Leave it at minus 3-4 degrees for 24 hours, it won't freeze.

[WindAtMyBack]

That's not much below freezing temperature. That might not be long enough. It also depends on the starting temperature. If the water started at 35-40C, then it will take a while to reach freezing temperature.

0C is freezing temperature. Water will reach that temperature and never drop below 0 until it freezes.

Also, if it's in the sun, it might not ever freeze, even if the air temperature is below freezing.

[Vivaldi]

Water was at Room temperature. So it can't freeze.

[Vivaldi]

It was below room temp actually. Not even room temp. It was cool water and it can't freeze at minus 4

You are making exucuses.

Put water at 4°C for a week at freezer and then put water at -4°C for 24 hours. It won't freeze.

[Vivaldi]

I remember the water was already cool to cold.

So it was not at room temp.

[jahaims]

It's about length of exposure more than the temperature. Once it is cold enough to cause frostbite of course.

[Vivaldi]

If I stayed outside at -30°C without gloves, would I be a frosbite?

[jahaims]

If you are exposed long enough, yes. Exposed limbs will get frostbite faster because the body prioritizes your organs over your limbs.

[Vivaldi]

I forgot to say for 30 minutes above.

[Vivaldi]

I meant -30°C in 30 minutes without gloves.

[Anonymous]

The experts say it can happen in 10 minutes when the temps are way below zero.

[laly520]

below 5 degrees

[Vivaldi]

F or C?

[laly520]

-5°C

[Vivaldi]

I thought you were American

[laly520]

I am American
I just copied what I found on Google since I didn't know at which temperature

[Vivaldi]

Americans use F. Thats why I asked C or F when I saw your location is America. Lol.

Minus 5 must be too difficult to get frosbite.

[laly520]

I know I just copied and pasted the answer lol
I don't have much of an idea about it but if u r in a very cold/snowy area then u gotta make sure ur body is warm enough
some got their fingers amputated cuz of it

[Agape93]

Below freezing