Under normal circumstances, it can be stored for two to three days at room temperature.

How to preserve lettuce:

1. Remove the leaves from the lettuce, put it in a fresh-keeping bag without scraping the skin, and then place it in the refrigerator. This method can usually be stored for a week. About;

2. If you want to peel and store the lettuce, you can use the water soaking method. Soak the peeled lettuce in water and leave it from noon to afternoon;

3 . If you want to keep it longer, you can cut the lettuce, blanch it in boiling water, pick it up, and then seal it and store it in the refrigerator.