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Food Spoilage

How can you prevent apples from turning brown?


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July 16, 2015 1:56PM
I have used the juice from pineapple chunks and the apple slices do not turn brown. Buy fresh apples for starters; second, keep them refrigerated. You are talking about apples that have been peeled or cut.

Any cut apple will eventually turn brown on the surface, if exposed to oxygen long enough, but there are a few ways to delay the action.

Cooking them will prevent it, for the most part. For fresh apples, squeezing a bit of lemon juice over them and sealing them (with as little air as possible) in a plastic bag helps, also.

Another option is to sprinkle them with a powder of ascorbic acid (Vitamin C). One brand name of the powdered form of ascorbic acid is Fruit Fresh®. It acts as an anti-oxidant, and is available in many grocery stores.

Cooking or freezing apples changes their texture, but keeps them from turning brown.

I think the best way to keep them from turning brown, is to eat them before they do. Apple juice can delay the browning effect of cut apples, but is not as effective as citrus fruit juices or Vitamin C.