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Why salt makes ice cream freeze: ice melting below 0 °C pulls out the heat Ice is already at 0 °C, so how can a handful of rock salt make it colder? Because salt makes ice want to melt below 0 °C, and melting costs energy: about 334… Food Science4 min read Why salt makes ice cream freeze: the cold that ice and salt create Ice is already cold, so why does salt make ice cream freeze? Because salt does not add cold. It stops the ice and water from staying in balance at 0 °C… Food Science3 min read Stale bread isn't dry: its starch has quietly turned back into crystals Bread left on the counter turns hard and crumbly, and it looks like it dried out. It mostly didn't. In 1852 Jean-Baptiste Boussingault showed that bread sealed… Food Science4 min read