Of course!! Do you know that monkeys pee on bananas? Yeah, and you just touch that, and open it, and monkey pee in your mouth and on your hands!! I work in the Food Industry!! I WASH ALL PRODUCE, with soap before peeling it! Why? It has a peel, right? Yeah, but when your knife cuts through the peel, the blade picks up every gods-awful thing on it, and drags it right down, along the cut!! Why do you think that cut fruits get all those little white dots (BACTERIA) within a few days?