In my opinion, one of the best ways to keep your fruit from browning is to soak them in a saltwater solution for 10 minutes. Not only will they stay fresh and crisp for hours, but the salty taste also works great in salads. Simply mix 1 teaspoon of salt into 2 cups of water and let your apples soak in the solution for 10 minutes. If you'd rather not have the salty flavour, simply rinse off the apples afterwards.