①. [Food Grade 304 Stainless Steel Material]: The coffee canisters are made of food grade 304 stainless steel. Compared with the airtight containers made of glass and plastic on the market, our containers are stronger, less fragile, rust-proof and safer. ②. [Transparent Window Design] When you are looking for things, our airtight jars allow you to see at a glance what food is stored in the airtight container, while other models don't show the contents until you open them. ③. Prevent air from entering the tank to ensure the freshness of the coffee beans and keep the taste unchanged. ④. [Date Tracking and Sealing] The coffee canister is designed with a lock, the lid has a silicone gasket, and there is a date tracking wheel on the top of the lid. The expiration date can be determined by putting in the coffee. When you open it next time, you will know how long it has been stored. ⑤. 【Widely used】Coffee cans can be used to store coffee beans, coffee powder, sugar, tea, nuts and other foods that need to be kept fresh. They can be used in a cafe, home kitchen, outdoor office or given as a gift to a friend.