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/ck/ - Food & Cooking


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>> No.11968919 [View]
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>cooking is just basic physics
>I am a physics phd

So why do I fuck it up all the time?

>> No.11297583 [View]
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fit here.

I just got told multivitamins are useless.

What is a good recipe that contains all the nutrition I need in a day?

>> No.11204999 [View]
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the wattage of your microwave matters as well. I have a 600W microwave right now, and almost everything I reheat is 7 minutes at 70% power.

1 watt is 1 joule per second. this means my microwave puts out (approximately) 600 joules per second. keep that in mind and check your microwave, because that changes what follows. also remember that the loss or gain of heat (energy, measured in joules) in an object can be calculated as: mass of object × change in temperature × specific heat capacity of material.

let's assume that most food is made up of water in some way, and that microwaves act by exciting those water molecules by shooting radiation at a frequency specifically adjusted to match that of the natural vibratory frequency of water molecules. I don't know if that's how it really works but it's close enough.

the specific heat of water is 4.186 joules per gram (source: https://water.usgs.gov/edu/heat-capacity.html). side note: if you have ever seen "kcals" thrown around and weren't sure what it really means, note that 1 kcal = 4186 joules. another word for kcal is kilocalorie, which means 1000 small calories and also means the same as Cal, a large or "food" calorie as represented on nutrition labels. 1 small calorie would then be equal to the specific heat of water. not really important here, but gives more context to why it all matters!

so if I have 2 cups of soup, that is 16 fluid ounces, or ~473 milliliters -- 1 mL = 1g of water as defined, so I have 473g of soup. assuming the soup is just above ideal refrigerator temperature (which is 1.6° C, or 35° F), because I took it out a few seconds ago and it's already warming to room temperature, call it warmed up to 2 degrees. I want to heat it to just below boiling, for a hot soup. 99° C should be a good target, so that makes 97° of heat difference.

>> No.10605131 [View]
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Fried zucchini.

>> No.10562224 [View]
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I ate rice today. And rice is technically a fruit.

>> No.9127363 [View]
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k thanks

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