One item in almost every kitchen is quietly putting bacteria in your food: you use it every dayYou wash your hands. You use it for raw chicken, raw beef, raw fish, whatever needs a knife. The item is your plastic cutting board, especially the older one with the deep knife grooves and the faint stains that never fully wash out. Do this:Toss any plastic cutting board with visible, deep knife grooves, especially if you use it for raw meat. So the board isn’t just holding onto bacteria your dishwasher can’t reach.