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How is freezer burn caused?

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?

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