Fellow Atmos Vacuum Canister for Coffee & Food Storage - Airtight Sealed Container, Clear Glass, Large Coffee Bean Storage, 1.2 Litre Jar

Product Information

Coffee (and other dry perishables) go stale for two main reasons: exposure to oxygen and humidity. Atmos and other containers on the market solve the oxygen problem by removing excess air. Atmos does so by lowering the pressure, whereas other devices remove excess air by physically shrinking the container. They're both effectively doing the same thing, but what makes Atmos unique is that it reduces both oxygen and humidity, subsequently extending the life of your coffee by up to 50%.

Displacement containers are another popular option, especially in the coffee and tea market. These devices rely on shrinking the area in the device, usually with a lid that you push into the container. As you press the lid, air rushes out, removing “empty space” between the lid and it’s contents. Despite the fact that this type of product removes air, in practice, there isn’t much difference between this type of storage and folding up your coffee bag, smooshing the air out, and tying a rubber band around it. Sure, it limits oxygen exposure, but oxygen is still present, albeit much less than in airtight containers. VacuumThe Atmos canister by Fellow comes highly recommended by Sullivan, who cites vacuum sealing as one of the best ways to store coffee beans or grounds. Made of durable 18/8 stainless steel, the body of this canister is wrapped in matte silicone and uses an easy twist mechanism to remove air and prevent premature oxidation. Refresh the vacuum seal by re-twisting the cap every four to five days to extend the life of your coffee by up to 50 percent. Umm Fellow, Atmos is definitely not the first vacuum canister on the market. What makes Atmos special?

Whole bean coffee freshness: We performed a similar test with whole beans that we did with ground coffee, storing half a bag in each canister and the other half in the bag over the course of eight days. We made notes on color and aroma of the beans before and after storage, and prepared a cup of coffee with the canister- and bag-stored beans to compare their flavor. As a further test of post-storage freshness, we sealed a few beans in zip-top bags and watched to see if the bags puffed up. (Fresh coffee beans produce carbon dioxide, which gradually inflates a sealed bag.) You just got fresh beans roasted within the past week, and you're super excited to try them out. You throw them into the atmos container and ditch the "inferior" bag it came in. You spin the lid (or do whatever mechanism creates a vacuum in your product) and throw it on your shelf. What really sets this canister apart is its inner lid, which you press down via a handle to remove the air from inside. Out of the 15 canisters we tested, this one tied for first place in freshness and flavor, largely due to the effectiveness of the inner lid. The Airscape is also one of the easiest canisters to clean (even though it's not dishwasher-safe) because its large size allows customers to reach all parts inside with a sponge. Once you've followed these steps, it should hold a seal between four and five days. Please remember that Atmos is designed to hold whole beans and not ground coffee. You can repeat the above process as you see fit to maintain your Atmos.I'm no chemist/scientist/physicist what have you... But here's what I understand is happening here.