Should You Wash Pre-Washed Lettuce

On the other hand, washing it again is not always recommended. Additional rinsing can introduce bacteria from kitchen sinks or utensils, and it may also reduce freshness or cause the leaves to wilt faster if not dried properly.

The Food Safety Science perspective generally emphasizes proper handling over repeated washing. Clean hands, sanitized surfaces, and correct refrigeration are often more important than re-washing pre-packaged greens.