Eli5: Why can a thermal flask keep items cold for 24 hours, but only hot for 12 hours.

Question

Eli5: Why can a thermal flask keep items cold for 24 hours, but only hot for 12 hours.

In: Physics

Answer 1

i’d guess “cold” is closer to ambient temperature than “hot”. example:

cold = 5°C

ambient = 25°C

hot = 70°C