Some of you may say, "Are you nuts? Lettuce can’t be kept for more than a couple days in the fridge!" Well, perhaps you are correct, if you don’t know the secret to keeping it long term. This is an industry secret I learned while working in a very fine restaurant in NJ. Many large restaurants buy lettuce by the case, which will contain anywhere from 18- 32 heads. Sometimes they will get used right away and other times because of the sheer quantity of usage, these cases must be stored. What I have done is tone down this to the average homemakers use. Remove the lettuce from the produce bag and do your best to shake off any excess water that may have been sprayed on by the grocer. DO NOT WASH the lettuce yet. Gently wrap the head in 2-3 paper towels (I usually use romaine lettuce, so this is rather easy to do) or clean, cotton dish towels and then you can either loosely put back in the bag or put right into the veggie drawer. What will happen is the paper towel will absorb any excess moisture from the head. Moisture is the enemy here. Too much moisture will cause the head to rot. The towel will absorb the excess, but remain just moist enough to keep the head from drying out.
I have used this buying a 6 head pack of romaine at Sam’s and have actually forgot I had it in the spare fridge downstairs for 2 weeks. The lettuce was still fresh and quite usable. This same trick can be used for scallions and all other leafy veggies.
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