Upgrade Your Airscape® Take your storage to the next level with the Fresh-Port® Inner Plunger Lid for Airscape® Classic Canister . Designed to enhance the performance of your Airscape® storage, this upgraded lid builds on our patented airless technology to keep coffee and dry goods fresher for longer. By incorporating Fresh-Port® technology , this innovative inner lid allows inert gases like argon to be introduced into the canister, creating a protective barrier between your contents and oxygen. The result is an even more effective airless environment that helps preserve freshness, flavor, and quality. Along with a built-in degas valve , the lid allows naturally occurring CO2 to escape while preventing oxygen from entering, making it ideal for freshly roasted coffee and other gas-releasing goods. Finished with a clear design , the Fresh-Port® Inner Plunger Lid lets you easily view your contents while delivering next-level storage performance DISCLAIMER: The Airscape®-branded inner lid is compatible only with Stainless Steel Airscape® canisters. Upgrade your Airscape® Classic Coffee Canister inner lid today! Pair with Airgone® for the full freshness experience. A quick note when using Airgone®! There is a wear-in period when using Airgone® with the patented Fresh-Port® Inner Lid. Some customers may experience slight resistance when inserting the red Airgone® straw, which is completely normal! These lids are designed with narrow valves to prevent leaks and oxygen exchange that could harm your product. For optimal results when using Airgone®, keep the red straw detached from the Airgone® can when inserting it into the Fresh-Port® valve. Hold the red straw close to the end being inserted and apply gentle pressure until the straw can stand alone. Then, attach the Airgone® can to the opposite end and administer a 2-second flush to displace oxygen. Once worn in, customers should have no trouble using Airgone® to keep their products fresh. If you’d like to speed up the wear-in process, take a paperclip and gently poke the blunt end through the Fresh-Port® valve. This should slightly widen the valve while maintaining the silicone seal to prevent oxygen exchange! Works with Airscape® sizes Small and Medium.