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Old 11-05-2010, 02:04 AM   #1
mrgreen4242
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Dec 2009
Grand Ledge, MI
Posts: 107


I had a few ounces of Hallertauer (3%) in a vacuum packed freezer bag that lost its vacuum at some point. So it's been stored in the freezer in, basically, a ziplock bag for ~5 months. Is it ruined or can I still use it? Has it lost some of its AA value? I am happy to err on the side of over hopping something if I can still use it for a bitting hops (love me some hoppy beer)!

Thanks!


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Old 11-05-2010, 02:31 AM   #2
Veinman
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Jan 2010
Edmonton
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The Hops Aging tab in BeerSmith says that a 3% hop aged for 5 months in the freezer in a plastic bag has an AA of 2.44%, 6 months drops it to 2.34%. Brew away my friend.



 
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Old 11-05-2010, 03:02 AM   #3
mrgreen4242
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Dec 2009
Grand Ledge, MI
Posts: 107

Huzzah! Gonna make a nice little session APA next week. Looked at the date and it's been 6 months (!) so I'll chuck all 3oz into the boil as the equivalent of an ounce of 7% Perle and call it a day. Thanks very much!

The next bulk buy of hops (hopefully in a couple weeks) is getting Foodsaver'ed in 1oz increments.
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Primary: None
Secondary: None
Kegged: Jack the Ripper London Ale Redux, Blue Moon Clone
Bottled: Must-Go APA, Mint Chocolate Stout
All gone: Jack the Ripper London Ale, Silver Dollar Cream Ale, Graff, Strawberry Wheat, "777" Rye IPA, Pomegranate Pilsner, Deer Camp Ice American Ale (19% ABV), Cream of Three Crops Ale, Pumpkin Spice Ale
Up Next: Something like Aprihop and/or Magic Hat #9

 
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Old 11-05-2010, 03:19 AM   #4
lumpher
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Jul 2009
texas
Posts: 5,063
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don't even bother adding extra hops. their numbers are for hops kept cold, not frozen. i keep some hops like yours anyway, and they're fine
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Old 11-05-2010, 07:25 AM   #5
Veinman
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Jan 2010
Edmonton
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Just for the record those numbers I gave were assuming the hops were at 28F. The difference between 2.34% and 3% is not large. The IBU difference for 3 oz is 23.4 (3%) vs 18.3 (2.34%) when added at 60 minutes, not a big difference according to BeerSmith.



 
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