The Airscape Glass Canister 4″ is perfect for your loose tea, or a 1/2 lb of beans. Airscape containers are the only thing we use when we don’t want to keep our beans in our Cupper’s bags! What you don’t see is the second lid inside the container, the one that makes it airtight. It has a venting handle that allows the air out as you press the lid down inside the canister, and then folds over to make it 100% airtight. Airscapes are fantastic for keeping all kinds of products fresh. Use your Airscape Glass Canister 4″ to hold your coffee, tea, herbs and spices, pretty much anything your imagination can come up with.