These grocery staples carry the biggest E. coli risk

Pre-washed greens and pre-cut produce, though convenient, may pose safety risks. Experts point to E. coli outbreaks linked to prewashed onions on Quarter Pounders, stressing the potential dangers. Properly rinsing and preparing produce at home is advisable, and caution is urged with cantaloupe and sprouts due to high contamination risks. Sprouts, cut fruits, and cantaloupes are also particularly prone to bacterial contamination.