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Old 04-07-2014, 08:09 PM   #11
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That's what I'm finding. DIPAs are lacking in the hop kick they should have. Looks like they are past their prime, like me



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Old 04-07-2014, 08:19 PM   #12
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I keep my hops vacuum sealed in my chest freezer. I have a lot of hops... Some from the 2011 harvest still.

I used some of the oldest ones in a brew on Sunday - still very aromatic and seem identical to when I bought them.

Bittering does fall a bit though.

Keep them sealed and frozen, either in vacuum bags or CO2 purged jars, they will last a lot longer than you might think.


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Old 04-07-2014, 10:06 PM   #13
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Quote:
Originally Posted by cscade View Post
Keep them sealed and frozen, either in vacuum bags or CO2 purged jars, they will last a lot longer than you might think.
That's been my experience as well.
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Old 04-07-2014, 10:11 PM   #14
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Originally Posted by Hopinista View Post
They won't usually give you off flavors, they just won't give you flavors
Actually there are cheesy and other stale flavors in old hops, and thusly why some deliciously funky Belgian styles actually call for old, stale hops.
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Old 04-07-2014, 11:32 PM   #15
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If frozen, and vacuum sealed, they will last for years.

I have used them as old as 6 years old, with no loss of flavor or aroma noticed, but I generally try to use them up in 2 years if possible.

The AAUs are supposed to diminish, but that hasn't been my experience when well stored. I get them in the fall after the harvest, and vacuum seal them and store them at 0 degrees.

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Old 04-08-2014, 01:58 AM   #16
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How are you guys vacuum sealing your hops?


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Old 04-08-2014, 02:06 AM   #17
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How are you guys vacuum sealing your hops?


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FoodSaver.

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Old 04-11-2014, 03:27 AM   #18
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I use the GameSaver model from Foodsaver and love it!


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Old 04-11-2014, 02:36 PM   #19
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I purchase hops in 1 lb packages that appear to be flushed and vacuum sealed. Once the bag is open, I just tightly roll the bag closed and seal it well with clips and sometimes put it in an additional bag, I then try and use it as soon as reasonable. I try and keep the lb packages unopened as long as I can, and try and only have several lbs open at a time.

I have often wondered if my lax hop storage was truly detrimental. I ran some numbers on the two calculators below

http://www.brewerslair.com/index.php...ators&id=cal16

http://brewerslog.appspot.com/HopAlphaCalc

The three storage options given are shown below...with the predicted loss at 6 months /1 year for Cascade hops at an original Alpha content of 7%

Not sealed or sealed in poly bags 6.2 / 5.5%
Sealed in barrier packaging, airtight jars, but not free from oxygen 6.4 / 5.8%
Sealed in barrier packaging, airtight jars under vacuum 6.6 / 6.2 %


FWIW, I found this interesting that keeping your hops simply well wrapped and frozen appears to preserve them reasonably well compared to other more involved processes. I also ran some numbers storing the hops at ambient temps, and the degradation occurs much more rapidly. While vacuum sealing helps, and packaging "oxygen free" helps even more, it is not a night and day difference b/w simply wrapping well...of course YMMV.

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Old 04-11-2014, 02:45 PM   #20
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Quote:
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I use the GameSaver model from Foodsaver and love it!


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Same here, invaluable device for brewing & BBQ.
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