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hochkurz mash

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Wort-H.O.G.:

--- Quote from: wort-h.o.g. on March 02, 2013, 08:56:47 AM ---
--- Quote from: davidgzach on March 02, 2013, 08:41:32 AM ---Nice!

--- End quote ---

hit all time high mash efficiency today..91%! PH into kettle was 5.5, right on target.

--- End quote ---

for those performing hochkurz mash...did you experience any gains in mash efficiency? since its the only variable i changed for this recipe, is it reasonable to presume the mash change from single infusion bumped me up from 86% to 91%?

morticaixavier:
Decoction can boost efficiency because more starch is gelatanized (sp?) during the boil stage so conversion efficiency is higher. Longer overall mash times will also increase conversion and possible overall efficiency.

Did you do anything to control your mash pH that you don't normally do? that can also boost efficiency.

Wort-H.O.G.:

--- Quote from: morticaixavier on March 04, 2013, 09:49:02 AM ---Decoction can boost efficiency because more starch is gelatanized (sp?) during the boil stage so conversion efficiency is higher. Longer overall mash times will also increase conversion and possible overall efficiency.

Did you do anything to control your mash pH that you don't normally do? that can also boost efficiency.

--- End quote ---

nothing different for PH control..just normal brewing salt additions to target my desired PH of 5.4-5.5.

Kaiser:
There are 2 parts that are beneficial for efficiency:

(1) - boiling the grain
(2) - higher temperature mash rest

I commonly let the high temperature rest (~72 C) sit or 30-60 min.

Kai

Wort-H.O.G.:

--- Quote from: Kaiser on March 04, 2013, 10:13:43 AM ---There are 2 parts that are beneficial for efficiency:

(1) - boiling the grain
(2) - higher temperature mash rest

I commonly let the high temperature rest (~72 C) sit or 30-60 min.

Kai

--- End quote ---

that makes sense. my typical mash for this recipe would be infusion at 1.5qts per pound, and rest for 75 minutes at 152F, then mash out with about 6qts of about 195F water. then batch sparge with strike water raising grist to about 168F.

i did the hochkurz with the first rest at 145F for 30 minutes,intermediate rest at 150F for 20 minutes, then raised to 158F for 45 minutes, and mash out. then did  my batch sparge with strike water raising grist to 168F.

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