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Old 06-28-2009, 07:18 PM   #1
Yankeehillbrewer
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Do you guys plan for lower efficiency when/if you use Vienna as a base?

My last two batches have had a Vienna base and efficiency has suffered quite a bit.

Thanks

 
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Old 06-28-2009, 09:14 PM   #2
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I've never had to make any allowances for vienna malt.
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Old 06-28-2009, 09:40 PM   #3
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I'm starting to think it's the crush. I wonder if my LHBS changed the setting on their mill. These last two batches didn't look to milled as well as they usually are. I just figured Vienna might be a little tougher to crush or something.

 
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Old 06-28-2009, 10:44 PM   #5
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Might be worth asking them if they've changed the crush. Explain that your efficiency has dropped the last couple batches, it may not just be you having the problem and they'd probably appreciate the feedback.
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Old 06-28-2009, 11:50 PM   #6
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After thinking a little more about today's brew, I did mash thicker than a I normally,1.25qts/lb as opposed 2qts/lb. Trying to see if it will give me stronger malt profile. And I didn't use my 5.2 Stabilizer, but I checked my mash pH and it was right about 5.2 without it, so I didn't see a need to use. I suppose those two things could explain the low efficiency. I don't know though, I missed my OG by 11 points and got 65% eff, I'm usually around 78-80%. It'll be beer either way, I just don't like missing by this much.

 
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Old 06-29-2009, 02:34 AM   #7
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I've never experienced a decrease even when I did a Vienna SMaSH.

 
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Old 06-29-2009, 02:36 AM   #8
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Best thing to do is see if you can reset all the variables and go back to your regular routine with the only difference being the crush from the LHBS. If you still get that large efficiency drop that's probably the culprit.
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Old 06-29-2009, 02:46 AM   #9
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If you're relying on the Vienna to convert something else, or doing a short mash, that could explain a reduction in efficiency. Vienna can convert itself given time, but won't have enough diastase to convert much else.

-a.
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Old 06-29-2009, 04:52 AM   #10
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Quote:
Originally Posted by ajf View Post
If you're relying on the Vienna to convert something else, or doing a short mash, that could explain a reduction in efficiency. Vienna can convert itself given time, but won't have enough diastase to convert much else.

-a.
Interesting, so I did a 60 minute mash at 153*.

8.75 lbs of Vienna
.5lb 40L
.5lb Wheat

Seems like that should be long enough to get the conversion I need, Right?

 
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