Frozen food that has not been properly wrapped or that has been frozen for an extended period of time might get freezer scorched. This is because the food has been exposed to air. Freezer burn appears on food as white or greyish-brown patches. It can make foods taste dry and bland. Foods that have been frozen charred, on the other hand, are still safe to eat. You can utilize the rest of the meal after removing the bits that have freezer burn.
You want to avoid allowing air to come into touch with frozen meals in order for them to keep well. Use heavy foil, freezer bags, or other freezer-safe containers. Before securing freezer bags, make sure to press out all of the air.
1. Items that are really hot should be allowed to cool to room temperature first. Once the steaming has stopped, place the dish in the refrigerator. Cooked items should be refrigerated or frozen within two hours.
2. Food can be swiftly cooled in uncovered flat dishes or in little quantities in the refrigerator.
3. Check the temperature of the freezer with a thermometer. It should be -18 degrees Celsius (0 degrees Fahrenheit).
4. Allow some space between packages to allow cool air to circulate.
5. Make sure to allow sufficient room at the top of the jar while freezing liquids. This is referred to as "headroom," and it is what causes liquids to expand as they freeze.
Source - https://www.unlockfood.ca/en/Articles/Cooking-Food-Preparation/Simple-Steps-to-Freeze-Food-Right
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