We accidentally found a good idea. We buy coffee when its on sale ( about $5 -$6 per big can) and repack them into Quart canning jars, I had some brass running in the tumbler,(in the reloading room) we filled the jars(in the kitchen) capped them, then she took them down & just held the jar on top of the tumbler for about 10 seconds. and it settled the coffee inside the jar down to 3/4 we topped it off and did it again, it saved space in the pantry. kept the coffee fresh when we open the jars they "Pop" just like a jar of peaches (and I got a bunch of plastic tubs for the reloading room.) Probably work for other things like Rice beans etc...