Pesticides and other agricultural chemicals are specifically engineered to be “waterproof” so they are not washed off by rain and irrigation. Many fruits and vegetables (grapes, apples, cucumbers, etc.) are also coated in wax to preserve the quality and appearance of the produce from the fields to your kitchen table. In addition to agricultural chemicals and other residues, 20 or more strangers may have handled your fruit or vegetable before you put it in your mouth.
