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Old 02-18-2010, 05:51 PM   #1
Brocster's Avatar
Mar 2009
Twin Cities
Posts: 279
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I don't have my HERMS set up yet so I only do single infusion at this time. I make 10 gallon batches with 15 gallon HLT and BK pots and a 70 qt cooler. I am brewing a classic Kolsch recipe this weekend and would really like to get as close to style as possible. Looking to make a dry and clear beer. Sine I can't effectively raise mash temps, I was thinking of doing a two-step infusion. First infusion (dough-in) would try to shoot for a rest of 145 degrees. Probably use 1qt per pound of liqour. Second infusion would shoot for a mash temp of 155 using .5qts per pound. Total grain weight of 22 pounds. First rest 50 minutes, second rest 20. Does this sound like a good approach? Or would a single infusion at 148 be just as good with a thin mash and long temps? Thanks!
Bottled: Imperial Hefe, Saison, Apfelwein
Kegged: ESB, Foundation Stout, Brothers English IPA, Kolsch, Bavarian Hefe
Secondary: Abbey Dubbel
Primary: Imperial Cherry Bavarian Hefe, Imperial Cherry Brussel Abbey
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Old 02-18-2010, 06:43 PM   #2
menschmaschine's Avatar
Jun 2007
Posts: 3,272
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The whole thick vs. thin mash thing has been discussed and many now believe it has no noticeable impact on fermentable sugars v. dextrins in homebrewing. However, the standard 1.25 qts/lb for a single infusion is pretty thick and probably became standard in homebrewing from the propensity of brewers brewing ales. Thinner is fine too and 1.5 to 2 qts/lb is what I usually do.

Anyway, if you did a single infusion, you want to go at least to 149F because starch has trouble gelatinizing below that. Your step infusion sounds fine. You could go like 45 min. at 145F and then 156-158F for 30 minutes and get a relatively dry beer with some body.

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Old 02-18-2010, 10:48 PM   #3
malkore's Avatar
Jun 2007
Posts: 6,922
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I've done single infusion mashes for my two kolsches and I thought they were both pretty damn good.
Primary: English Mild
On tap: Pale Ale, Lancelot's Wheat, English Brown Ale, Steam Beer, HoovNuts IPA
Bottled: MOAM, Braggot, Raspberry Melomel, Merlot, Apfelwein, Pyment, Sweet mead, Cabernet
Gal in 2009: 27, Gal in 2010: 34, Gal in 2011: 13, Gal in 2012: 10

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