Quick Answer: The Planetary Design Airscape® Airtight Stainless Steel Coffee Canister – Black is a coffee canister from Planetary Design designed for storing coffee beans, grounds, or other dry ingredients. Key Details INNOVATIVE & PATENTED PLUNGER DESIGN - The patented inner plunger lid with a two way valve forces excess oxygen out of the canister and locks out excess humidity. SOUND OF FRESH - Airscape lid removes all air in the canister creating airless food storage; extends the life of coffee, tea, flour, sugar, cereal, cookies, seeds, herbs, nuts, pet food or any perishable goods. COFFEE CONNOISSEUR - Proper storage to preserve the integrity and quality of the whole coffee bean, extending the coffees' body & flavor profile for an exquisitely crafted cup of artisan brew. QUALITY COUNTS - Airscape Coffee & Food Storage Canister made from 18/8 restaurant-grade stainless steel, BPA-Free components with an enamel paint finish. STURDY & STACKABLE - A perfect size for your kitchen counter or easy to stack for compact storage in the pantry.