General Category > All Grain Brewing

Mash Efficiency Problem

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dmtaylor:
If you want the best efficiency, collect and boil every single drop.  Otherwise your efficiency will definitely take a hit.

jeffy:
One would think after all these years that I'd figure all the volumes out, but the last two batches I ended up collecting way too much wort and had to extend the boil by over an hour.  'Hit my numbers in the end but it took a lot longer.

denny:

--- Quote from: jeffy on September 03, 2013, 08:42:18 AM ---One would think after all these years that I'd figure all the volumes out, but the last two batches I ended up collecting way too much wort and had to extend the boil by over an hour.  'Hit my numbers in the end but it took a lot longer.

--- End quote ---

I have the same affliction.

ynotbrusum:

--- Quote from: denny on September 03, 2013, 09:24:07 AM ---
--- Quote from: jeffy on September 03, 2013, 08:42:18 AM ---One would think after all these years that I'd figure all the volumes out, but the last two batches I ended up collecting way too much wort and had to extend the boil by over an hour.  'Hit my numbers in the end but it took a lot longer.

--- End quote ---

I have the same affliction.

--- End quote ---

I have a new grain mill and have been using a larger boil kettle, so I have been adjusting things one at a time - volumes have been big to allow for greater boil off, but external temperature and humidity have been giving me differences that I didn't expect.  Sometimes much longer boils or just a little different beer than intended.  Still dialing in....

nicosan1:
So about to brew my Black IPA on Sunday, these tips will help out. I'm debating using a ratio of 1.5 or 1.75 qt/pd for initial mash-in. Will mash for 75 to be safe in my 10 gallon round rubbermaid mash tun. Will stir only at beginning and once 20 minutes before I mash out when I have to add my Midnight Wheat.  I also was wondering if perhaps I should slow my vorlauf to a trickle to increase efficiency?  I thought I did it slow in past but that meant getting wort out in 10-15 minutes, perhaps extend to 45 minutes. 

Guy at my LHBS told me one trick could be to collect first runnings, raise to 168 in kettle, recirculate those, then batch sparge one final time with sparge water to get final volume up to 6.7 gallons to get efficiency up better.  Does that sound like a useful exercise as well?

Lastly, using Denny's favorite as my yeast as a new experience.

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