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Also asked, do you need to blanch leeks before freezing?
Blanching Your Leeks. Get a large pot and a wire blanching basket. While you don't have to blanch your leeks before freezing, doing so can help your frozen leeks stay fresher and more flavorful for longer.
Subsequently, one may also ask, what is the best way to store fresh leeks?
Fresh leeks should be stored unwashed and untrimmed in the refrigerator, where they will keep fresh for 1 to 2 weeks. Keeping them in perforated or loosely wrapped plastic will help them to retain moisture.
Leeks can be easily frozen for later use in soups, stews or casseroles. After cleaning, place cut leeks on a clean, dry towel and allow them to air dry. Flash freeze by placing them on a sheet tray in a single layer until just frozen. Once frozen, transfer to a re-usable, freezer-safe container.