Handle apples gently to prevent bruising.
Store apples in a plastic bag in the crisper section of your refrigerator. This will maintain the right temperature and humidity level to keep the apples crisper and juicier longer.
Store away from foods with strong odors. Apples are porous and will absorb strong food odors.
Do not store apples with vegetables such as leafy greens, broccoli, cabbage or cauliflower. Apples give off a gas that will damage them.
The gas that apples produce will also speed up the ripening of other fruits such as bananas, kiwis, peaches, pears and plums when stored together.
Info from Zarpentine Apple Farms