Store most lettuces loosely wrapped in a plastic bag in the salad drawer of the refrigerator. However, once wilted, lettuce will not recover even in the fridge. Most need to be used within a couple of days, although a few such as Iceberg and Little Gem can be kept up to a week. All salad leaves, whether bought or picked, will perk up after being soaked in cold water for a couple of hours before using. But don’t forget to dry them really well. Pre-packaged bags of lettuce leaves must be used quickly once opened as the leaves quickly spoil. Lettuces are unsuitable for freezing.