these work pretty well in the freezer for me. And as this is an admirably evidenced based thread the evidence is that when I pop the top I get a nice, fresh roasted coffee smell every time. The espressed coffee behaves just fine, good flavor and body. I have not held coffee beyond about two weeks so I can't say how long they will work.
Gig103 Senior Member Joined: 12 Feb 2012 Posts: 204 Location: Arizona Expertise: I like coffee
Espresso: Crossland CC1 Grinder: Baratza Vario Drip: French press!
Posted Sat Feb 25, 2012, 6:35pm Subject: Re: Trouble Freezing Beans
I dunno if SCG has good or bad street cred around here, but they did an unscientific test about freezing (Click here).
They found that, at least with Velton's, what worked best was keeping it in the factory bag but with a piece of scotch tape over the valve. I can't figure out why that worked better than the bag without tape over the valve, or than the Freshsaver bags. The coffee in the vac bag had offgassed, but wouldn't the valve being covered do the same?
Posted Sat Mar 3, 2012, 5:02pm Subject: Re: Trouble Freezing Beans
Gig103 Said:
I dunno if SCG has good or bad street cred around here, but they did an unscientific test about freezing (Click here).
They found that, at least with Velton's, what worked best was keeping it in the factory bag but with a piece of scotch tape over the valve. I can't figure out why that worked better than the bag without tape over the valve, or than the Freshsaver bags. The coffee in the vac bag had offgassed, but wouldn't the valve being covered do the same?
The idea is that freezing stops the outgassing, and taping the valve shut prevents air from entering the bag in the freezer. The valve doesn't work right when it's frozen, so it's best to disable it until you defrost. I've found that beans frozen in Mason jars with new lids that survive freezing well will give off a pop after they're defrosted and opened, and beans that come out skanky won't.
"I've Scaced many HX/E61 machines, seeing shot variances of up to 8-10F or more. [The BDB] stays within 1F." - Mark Prince
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