About This Dual-Mode Storage for Targeted Freshness： Switch modes based on storage time: Use vent mode for short-term storage, then swap in the included silicone seal beads to switch to airtight mode when coffee beans are stored over 2 weeks or coffee grounds over 3 days. This airtight seal locks out air, keeping your items fresh exactly when you need it. Dual-Layer Sealing + One-Way Valve = Longer Freshness： Features a lock clasp + silicone ring for strong airtightness, extending coffee freshness effectively in dry environments. The built-in one-way air valve on the lid releases excess gas, forestall oxidation and preserving the original flavor of coffee beans—no more stale coffee. Thickened 304 Stainless Steel： Crafted from thickened 304 stainless steel with a high-temperature baked enamel finish. It’s sturdy and durable, plus blocks light and insulates heat—solving the problem of flavor departure from light/heat exposure, so your stored items stay fresher longer. Date Tracker & 30ML Spoon for Convenience： The lid has a date tracker ring, letting you easily note storage start dates and monitor freshness at a glance. Includes a 30ML measuring spoon: no more messy "guesswork" with portions, and it hangs on the canister side for quick, clutter-free access after use. Multi-Use & Multiple Sizes to Choose From： More than just a coffee canister—perfect for storing beans, tea, nuts, and candies (holds more than you think!). Available in 4 practical sizes: 1200ML, 1500ML, 1800ML, 2800ML—pick the right capacity for your home storage needs. Overview Brand : Generic Color : White Material : Metal Capacity : 1 Grams Product Dimensions : 0.39"L x 0.39"W x 0.39"H