Ok so I just had a lasagna in the oven for 45 minutes, covered in foil. I pulled it out and the tin foil isn’t even warm. How?
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Aluminum is a very good conductor of heat and anything that absorbes heat quickly will also shed that heat just as quickly. Add that the foil is very thin and it wont stay hot but for a minute or two.
Alum is 3rd behind silver and copper for heat dissipation and its relatively low cost is why it is used for heat sinks in electronics and computers
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