Coffeevac 1/2 LB – Patented Airtight Container | Multi-use Vacuum Container Works as Smell Proof Containers for Ground Coffee and Coffee Bean Containers. Black Cap and Body

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There may well be a gasket on the lid, which will keep air out from the top, but as far as oxygen is concerned, there's a massive gap between the burrs (massive when compared to oxygen) and an even bigger gap known as the grinds chute ;-).

Hoppers don't protect coffee beans from oxygen, heat, light, humidity, or heat. This is why, I believe, many people have issues with dialing in, that they just can't seem to fix regardless of what they try.We tested the largest model, which holds 2.5 quarts. Since it isn't specifically designed for coffee, we found it more simplistic than other canisters, some of which include one-way CO2 valves, clasps, coffee scoops, and more. It's also on the expensive end, partially because of the durable stoneware it's made from, so it isn't the best value for money out there. Regardless, we gave it high marks for freshness, durability, and ease of cleaning. 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. One of the best ways to keep coffee beans fresh is by protecting them from oxygen, and few kitchen containers do a better job of that than the Fellow Atmos Vacuum Canister. In fact, the brand says its canisters increase coffee shelf life by roughly 50 percent. After testing, we confirmed that the canister keeps coffee fresh longer than other options, though we can't definitively corroborate the 50 percent claim. We also performed a follow-up test with the Atmos in a different size (1.2 liters as opposed to 0.4 liters) and, again, found the results above average. Airtight jars or tubs are better than nothing, but the less oxygen trapped in with your beans when sealed, the better, so if your coffee beans storage solution has a way to push out the air, mega. Green coffee refers to coffee beans that haven't been roasted yet. This is also called "raw coffee." Green coffee beans should typically be roasted within one year of purchasing them. Otherwise, they may lose their flavor. That said, some roasters choose to age coffee beans for multiple years to accentuate certain flavors in the beans, similar to aging wine or whiskey, but this is an intricate process that only works with certain varieties of coffee.

If you're going to put them straight into an Airscape or Fellow Atmos for example, meaning you'll be pushing the air out, then that's fair enough, but if you're putting them in a container that doesn't allow you to force the air out, or if you're keeping them in the bag, I'd recommend not opening them until you're about to use them.If you like the product and want a full set for your kitchen, Planetary Design produces the Airscape in two other sizes: a small canister, which holds 8 ounces of coffee, and a medium-sized one, which can store up to 1 pound. All options are sold at reasonable prices—even this bulk one.