Iceberg lettuce usually looks impeccable, and with the leaves so tightly packed, you might be wondering: do I really need to rinse every single one? picture alliance / dpa Salad is always a good idea ...

Leafy greens like lettuce and spinach are a leading source of foodborne illness in the U.S. Washing helps remove dirt, pesticides, and some germs, but it can’t get rid of all pathogens. Experts say ...