If you’re a fan of reusable shopping totes because they’re eco-friendly and help save natural resources, keep in mind that these nylon bags need to be washed out regularly. According to a survey conducted by the Home Food Safely program, only 1 in 6 Americans put soap and water to work on the bacteria these totes often carry. That’s just 15% of the people who use them.

True Strength Moment: Don’t let your commitment to eating clean get in the way of shopping green. Every year, 48 million Americans are affected by foodborne pathogens like salmonella, listeria and E. coli. In addition to the hazards of food cross-contamination, transporting raw meats and unwashed fruits and vegetables in these totes can leave behind lingering bacteria that has the potential to contaminate future grocery store or farm stand purchases. Throw that tote in the washing machine or hand wash it weekly in hot soapy water.