My freezer is set at -21°C (-6°F) and tubs of ice cream come out hard as a rock and are near impossible to scoop. But if I set it a few degrees warmer, yet still way below the freezing point of water, I can scoop it easily. So, is there such a thing as both frozen and *really* frozen? Conversely, a boiling point is a boiling point, I believe. Heating water to a temp above 100°C gets you the same steam that you got at 100, just faster. Right?
In: 102
The reason a freezer is set lower than zero, is because you are not just freezing water. You are freezing food with variaying ingredients. Stuff with salt in it and such. 0c probably wont fully freeze everything in there.
As for boiling points. Being much hotter will convert more of the water to steam, which blasts more steam out. Also consider air pressure effects what temperature something boils at. So people who are at high elevation will have there water boil before 100c
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