I know what a Mason Jar is - called canning or "bottling " jars in Australia & New Zealand.
And of course I get how a vacuum sealer works with plastic bags.
But how on earth do you get a vacuum in a mason jar?
Surely that would need a very good vacuum pump?
As I typically deal with 12-15 pounds of dried home grown cones along with even more poundage of assorted pellets, unless ones freezer compartment height is a precise integer multiple of the jar height, I disagree...
Cheers!
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