Lettuce will get limp in the freezer.
When you buy lettuce from the grocery store or farmer’s market, it is generally fresh and has a good crunch to it. The freezer breaks down the leafy green vegetable and causes it to lose its crispness, leaving you with a soggy salad.
“Lettuce will turn from crispy to mushy, limp, unusable green goop after it is placed in the freezer,” said Murphy.