I have a Foodsaver vacuum sealer and it came with several canisters. A land-based friend told me she used these type vac-seal canisters to keep lettuce crisp for up to a month. In 8 years of cruising I never used any of the canisters because thought these would take up too much fridge space. When we were leaving Turkey
last month I stocked up on as much fresh produce as possible since it is often limited in the Greek islands
. I used 2 of the vac-seal canisters to store fresh strawberries. Three weeks later those strawberries were just as fresh as the day I washed, removed stems and vacuum sealed into those canisters.
Definitely will be using these canisters in the future to keep veggies and fruit fresh for times when I know we will not have easy access to more for a few weeks. And really did not take up nearly as much fridge space as I had feared.