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Roger Cumberbatch|Food|21 Oct 2025

How is freezer burn caused?

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Frozen meat
Retry Correct Incorrect Freezer burn is caused by dehydration and oxidation of frozen food. When water molecules in the food sublimate, they leave behind dry pockets, leading to a change in texture and flavor. Oxygen molecules in the freezer can also react with the food’s fats and proteins, causing discoloration and off-flavors.
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FRED TANNEAU/AFP via Getty Images
FRED TANNEAU/AFP via Getty Images

How is freezer burn caused?

  • Spoiled or expired frozen food
  • Dehydration and oxidation of frozen food
  • Food in the freezer over six months
  • Heating food immediately from the freezer
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