Storing apples in the refrigerator

Place apples in a plastic bag before storing them in the fridge. They give off ethylene, a natural gas that can make lettuce and other produce turn brown, and the plastic will prevent that. It is also good to know that storing apples in the refrigerator will keep crisp for up to 4 weeks, while outside (in a cool and dry place) will keep crisp for about 1 week.