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co2 gas flush / infusion in order to lengthen shelf life?
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CheapBastid
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Posted Wed Apr 10, 2013, 11:57am
Subject: Re: co2 gas flush / infusion in order to lengthen shelf life?
 

jpender Said:

Why would a bag be better than a jar (assuming the jar is filled)?

Posted April 10, 2013 link

My assumption is that the bag conforms to the shape of the beans inside 'better' and has an opportunity to present 'less space' for the remaining oxygen.

My two reasons for avoiding bags were the reports that they didn't hold a seal as well, and also there seems to be a slight temperature buffer that the glass jar affords.  Since I don't have a deep freeze this seemed a benefit.  I've been thinking of having a small insulated container for my beans in the freezer to help buffer the temp changes as well.
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jpender
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Posted Wed Apr 10, 2013, 12:19pm
Subject: Re: co2 gas flush / infusion in order to lengthen shelf life?
 

Most of the air space is in between the beans. So while a bag will conform better to the outside I don't think it's a big difference in overall void volume, provided the jar is full.
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dana_leighton
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Posted Wed Apr 10, 2013, 1:19pm
Subject: Re: co2 gas flush / infusion in order to lengthen shelf life?
 

CheapBastid Said:

My concerns were in the reports that the bags did not hold a seal very well.

Posted April 10, 2013 link

I have seen about 20% of the bags I seal have seal problems. That is with the FoodSaver bag material, sealed at both ends, and I even do two separate seals on each side. I think the pre-made bags are better - seem to have fewer seal problems. The pint bags conveniently hold about 150g of green beans, just the right amount for a load in my roaster. Quart bags might be better for roasted.

 
Dana Leighton - Espresso hack and CoffeeGeek moderator
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Netphilosopher
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Posted Wed Apr 10, 2013, 2:00pm
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Posted Thu Apr 11, 2013, 3:54am
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Netphilosopher
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Posted Fri Apr 12, 2013, 3:38am
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