 But you don't think about washing your watermelon or washing your cantaloupe because, well, I'm actually eating what's inside. Well, when you put it on the cutting board and your knife goes through it, it goes right through the rind, which is where the bacteria is. It ends up in the fruit on the inside. And so you want to wash those off and just regular water in the sink, maybe with a soft brush to agitate just a little bit.