Does skim milk get/stay colder than 2% milk?!
Wouldn't it make sense because 2% has more fat to insulate it and keep it warmer? Or am I just imagining things?
Answers: I think so, but I don't know . It tastes colder when you drink it (compared to 2% or whole or any other "fattier" milk).
Wouldn't it make sense because 2% has more fat to insulate it and keep it warmer? Or am I just imagining things?
The lower the fat content of a particular milk the higher the water content. Water has an incredibly high specific heat when compared to most things people come in contact with on a daily basis so that is probably why it seems colder to you when both cartons are very probably exactly the same temperature.
This is because of water's specific heat, like I said. A basic explanation of specific heats:
Substance A (let's say it's water) takes 500 joules to raise its temperature by one degree, Substance B (let's say it's the inside of your mouth) takes 250 joules to raise its temperature by one degree. If the water and your mouth are at different temperatures they are going to try to seek equilibrium, but for every degree the water goes up your mouth will go down two degrees because it takes twice the thermal energy to change the water by one degree as it does your mouth.
What this means for the milk is that if you had a glass of skim and a glass of 2% that were both identical in temperature the skim would, when you drank it, seem colder because it drew more thermal energy out of your mouth (and thus lowered its temperature further) because it has a higher specific heat (required more energy to change) than the 2%.
Hope that makes sense, I tried to explain it as clearly as I could.
I don't know scientifically, but from experience, I would totally agree with you. Skim is always colder!
yes, it is more watered down.
Cream is thicker than water and does not chill the same.
It's more watered down, yes, but when it stays in the fridge for days and days it'll equilibrate to the same temperature as everything else.
It's probably more likely that fattier milk warms up quicker than skim when taken out of the fridge. The feeling of it being colder than "regular" milk when you drink it is one thing I like about skim.