Freezer burn happens when frozen food loses moisture and gets exposed to cold air, leaving dry, discolored spots. Preventing it comes down to sealing out air and keeping your freezer cold and steady, so your food stays tasty longer.
What you'll need
- Airtight freezer bags or containers
- Freezer-safe wrap
- Marker and labels
- Freezer thermometer (optional)
Step by step
- Cool food before freezingLet hot food cool to room temperature or in the fridge before freezing. Warm food raises the freezer temperature and creates ice crystals.
- Use airtight packagingPack food in heavy freezer bags or airtight containers made for freezing. Thin wrap and regular sandwich bags let too much air through.
- Remove as much air as possiblePress air out of bags before sealing, or use a vacuum sealer if you have one. Less air means less moisture loss and fewer ice crystals.
- Wrap in layers for long storageFor meats and items stored a long time, wrap tightly in freezer wrap, then place in a bag. A double barrier keeps air away better.
- Keep the freezer cold and fullKeep the freezer at or below 0 degrees Fahrenheit and avoid leaving the door open. A fairly full freezer holds its temperature more steadily.
- Label and rotateLabel packages with the date and use older items first. Eating food within a few months limits the chance of freezer burn.
Handy tips
- Portion food into meal-sized amounts so you only thaw what you need and avoid refreezing.
- Fill containers close to the top, leaving a little room for expansion, to reduce trapped air.
- A freezer thermometer helps you confirm the temperature stays cold enough.
Heads up
- Freezer-burned food is generally safe to eat, but avoid eating anything that shows signs of spoilage such as an off smell or slimy texture after thawing.
FAQ
Is freezer-burned food safe to eat?
Yes, freezer burn is a quality issue rather than a safety one, so the food is generally safe. The affected spots may taste dry or bland, and you can trim them off before cooking.
What causes freezer burn?
It is caused by air reaching the food's surface and drawing out moisture, which forms ice crystals and dry patches. Poor sealing and temperature swings make it worse.
How long can food stay in the freezer?
It varies by food, but many items keep good quality for a few months and some for longer. Proper packaging and steady cold temperatures extend how long food stays good.