Attempting to wash a fruit with soap is a pointless endeavor, and science has got a definitive answer on this one. Soap can damage or remove the waxy coating that protects plant produce from premature ripening and deterioration. Slick coatings resist moisture penetration; when the slick part wears off, moisture penetrates into the skin of the fruit and rots it from within. If anything, add washed fruit (and any fresh vegetables) to whatever dish you're cooking in order to rinse them off after smashing or cutting them up - water is all your fruits want or need!..