Apples are coated in a very thin wax to keep them fresh longer in the grocery store. You want to be sure and wash that off completely.u003cbr/u003eu003cbr/u003eRinse in warm water and scrub gently.u003cbr/u003eu003cbr/u003eYou can also boil water with a ¼ cup of white vinegar and dip your apple in the solution for just a few seconds to help melt the wax away.u003cbr/u003eu003cbr/u003eI’ve also heard that one teaspoon of baking soda in 4 cups of water makes a great solution for washing apples.