With proper care, and depending on intensity of use, beeswax wraps can last between 6 and 12 months! Most important thing to remember is prolonged exposure to excessive heat. This includes direct sun, steam, heat from food, hot dishes and bowls. Not suitable for use in dishwashers, microwaves. In hot weather, keep out of the heat – that includes in lunchboxes, cars etc. In hot climates store in the fridge.