Food is chemicals and chemicals will degrade even when frozen. There is no bacterial growth, but the quality of the food will degrade to the point where it will not taste the same anymore.
This is why in research settings liquid nitrogen is used for preserving biological and sometimes chemical samples for a very long time. 0 degrees C is still very far above absolute zero and chemical reactions do still happen.
Food is chemicals and chemicals will degrade even when frozen. There is no bacterial growth, but the quality of the food will degrade to the point where it will not taste the same anymore.
This is why in research settings liquid nitrogen is used for preserving biological and sometimes chemical samples for a very long time. 0 degrees C is still very far above absolute zero and chemical reactions do still happen.
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