A double-walled stainless steel tea tin is the best way to keep your green tea fresh for up to a year. Green tea needs to be kept away from heat, light, air, and moisture. The best way to store it is at room temperature in an airtight tea canister. Unlike coffee, you cannot wrap it up and put it in the freezer. Green tea will lose its flavor and scent quickly if stored in fancy, purely decorative tea containers or kept near a heat source, such as a stove or next to the toaster in your kitchen