Our Review/Thoughts

The two good canisters are well built of stainless steel and should last a long time

No problems sucking grounds into air chamber, sealed and stayed for a 1 1/2 weeks, hopeful it will for much longer

The vacuum seal lasts less than a day before the chamber leaked all the air back in

This Osaka Vacuum Sealed Canister is great

I have taken the thing apart, cleaned it out and put it back together again, and at that point it will work, but only until coffee finds its way back into the vacuum mechanism

And that didn't concern me all that much before

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