What keeps lettuce from being wilted?

Lettuce can be kept from wilting by storing it in a cool, humid environment. The best way to do this is to wrap the lettuce in a paper towel and place it in a plastic bag or container with a lid. The paper towel will help to absorb any excess moisture, and the plastic bag will help to keep the lettuce fresh. Lettuce can also be stored in a crisper drawer in the refrigerator, but it is important to make sure that the drawer is not too humid, as this can cause the lettuce to become soggy.