Wash Bags Weekly
Washing reusable, cloth lunch bags in either hot, soapy water or the washing machine destroys more than 99 percent of bacteria, according to Gerba's study. Moisture creates an optimal environment for pathogens, so be sure to dry lunch bags in the dryer or let them to air dry completely before folding them up to keep bacteria at bay. We've all done it, but leaving lunch bags in the car is a sure recipe for bacteria. Empty lunch boxes as soon as you get home and store them in a clean, dry place.