How to Keep Lettuce Fresh Longer Food storage questions are common, especially since certain foods are difficult to keep fresh.  We frequently receive similar questions and concerns from homemakers about the same subject: how do you keep lettuce fresh, how to keep lettuce longer, how to keep lettuce from turning brown, and how to keep your green lettuce – well, green!  Understandably, no one wants to throw away the hard-earned money they’ve spent on groceries.  We’re here to help with how to keep lettuce longer! Moisture is the number one enemy of your lettuce, spinach, and other green leafy cruciferous vegetables, plain and simple.  The secret to storing your lettuce…