How to Freeze Foods Safely
Freezing is a great way to preserve food for a long period of time, and that’s all thanks to some simple science. As the temperature of the food drops below freezing point, the water in its cells turns into ice crystals. The optimum temperature for freezing most foods is between -15°C and -18°C, because this is the temperature at which food-poisoning bacteria stops growing. In other words, freezing doesn’t kill bacteria but stops it from growing rapidly and prevents food poisoning.
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