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OkieDokie
Joined: 31 Aug 2013 Posts: 191 Location: Oklahoma
Drinking: Electric ale, Weizen
Working on: Electric lager, American Amber Ale, Dirty Blonde
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Link Posted: Tue Jan 14, 2014 10:27 pm Post subject: Making Hop Extract |
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This doesn't really fall under hop growing per se, but I was doing some reading on hop extracts and the use of them, post kegging, to add some more bitterness to a recipe that just missed the mark a bit.
So I decided to try to make my own.
I took an ounce of Hallertau and added 2 cups of vodka. Let it sit for a week, and I just pulled off the separation. I will try to add photos. I think it worked, or sort of, because I made this vodka hoptini stuff, that was crazy bitter, even one drop of it.
Was wondering how can you test for the IBU of this "product" to use in recipe?
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huaco
Joined: 05 Apr 2012 Posts: 1506 Location: Burleson Texas
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Link Posted: Tue Jan 14, 2014 10:44 pm Post subject: |
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Hmmm.
Are alpha acids alcohol soluble?
Sounds like something you should just add to taste. There are Labs that can test the alpha acids but the vodka may mess up their protocol.
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OkieDokie
Joined: 31 Aug 2013 Posts: 191 Location: Oklahoma
Drinking: Electric ale, Weizen
Working on: Electric lager, American Amber Ale, Dirty Blonde
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Link Posted: Wed Jan 15, 2014 1:44 am Post subject: |
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Not quite sure. I know that making other extracts, like vanilla or almond, etc., some are made with alcohol. Other forums talked about using alcohol as a means of extracting. And yes, just a bit added for the bittering is needed. Things I've read, say that only a few drops per glass are enough. Just a fun experiment, and not sure if it's really viable, but something to do.
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Ozarks Mountain Brew
Joined: 22 May 2013 Posts: 737 Location: The Ozark Mountains of Missouri
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Link Posted: Wed Jan 15, 2014 4:35 am Post subject: |
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I add hops to kegs all the time, just try it in a bag with fresh hops, only thing is it fades quicker but just adding magnum will certainly add bitterness even without the strait alcohol
_________________ "Imagination is more important than knowledge. Knowledge is limited. Imagination encircles the world."
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foomench
Joined: 21 Feb 2012 Posts: 704 Location: Longmont, CO
Drinking: Pinot barrel aged quad
Working on: Flanders oude bruin in barrel, Flanders red fermenting to refill the barrel
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Link Posted: Wed Jan 15, 2014 5:58 pm Post subject: |
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I recall a session at the Craft Brewers Conference in 2008 (recall the hop shortage around then) where a producer of hop extracts explained some of the process, which was a bit more exotic than dissolving in vodka. The MoreBeer extract is made by using liquid CO2, and here's a patent for a more involved process, and the discussion mentions methods like boiling in aqueous alkali and using organic solvents. Of course at the commercial level, it is all about getting as much alpha alpha as possible from a given amount of hops. The best we as brewers get is about 29-30% utilization, which means a lot of waste.
Of course, alcohol is an organic solvent (a weak one?), and as a homebrewer using two ounces of hops instead of one isn't a big deal. So I suppose making your own extract is a viable option. If you don't want to make it, here's another product available for homebrewers: http://www.hoptech.com/products/iso-alpha-extract-2-oz
_________________ Brewery equipment photos (et al) here: https://picasaweb.google.com/114861423235799103704
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