The Airscape® forces the freshness-destroying air out of the canister, extending the life of your coffee to keep what’s good today, good tomorrow too! The BPA-free clear, top lid allows you to see how much is left in the container, and the inner Airscape lid (also BPA-free) makes a fun “swooshing” noise as it's pushed down, so you can actually hear it working. Made from restaurant-grade, 18/8 stainless steel with an enamel paint finish.