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Old 05-08-2012, 03:25 PM   #1
Dec 2009
Posts: 422
Liked 60 Times on 34 Posts


I brewed a smoked wheat beer the other day and my efficiency sucked.
It was an all german wheat malt grain bill. About a week before I brewed, I cold smoked the wheat malt with oak.

I did a single infusion mash at 150 degrees in my system that I usually get 70% efficiency. This time my efficiency was 54%.

I did not do a protein rest.

I have done similar style beers with 50% of the grain bill unsmoked wheat malt and have never had a problem with efficiency. I did not do a protein rest on these beers either

When I smoked the beer, I wetted the malt with a spray bottle at the beginning and at several times during the cold smoke. The malt was smoked for just over 2 hours. Since I was using a cold smoke technique, the temperature in the smoker did not go over ambient temperature (high 70's).

Where am I going wrong. Does cold smoking grain affect its diastatic power? How about wetting the grain for smoking? From what I can tell, the wheat malt should have enough diastatic power to convert, but do I need to throw some pilsner or 2 row malt in with it?

Any help is appreciated.
BOHA Brewing Consortium

If Necessity is the Mother of Invention, Laziness is Its Creepy Uncle

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