Eli5: why do certain refrigerated products require us to consume all once opened? Why can’t we eat some and refrigerate it again to consumer it later?
In: 24
Because normal refrigeration can’t stop bacteria growing and spoiling the food, it merely slows it down.
Some food are particularly prone to spoiling so they are sealed and superheated to completely kill all bacteria inside the package. Opening it exposes it to bacteria again and it will spoil quickly even if you put it in the refrigerator.
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