Always Fresh Containers is a new hassle-free way of storing food that will save you a lot of money. Food/Fruits becomes stale because it emits ethylene gas. Always Fresh Container is made from crystalline minerals that have a natural tendency to absorb food decaying gases like ethylene. So your food lasts longer. Always Fresh Containers are microwave (with lid) and dishwasher safe. With this tv offer you will get 20 piece food storage kit for just $19.99.