New Giveaway - Wort Monster Conical Fermeneter!

Home Brew Forums > Home Brewing Beer > All Grain & Partial Mash Brewing > a$$ awful efficiency




Reply
 
LinkBack Thread Tools Display Modes
Old 08-12-2008, 10:06 PM   #1
BugleBrew
Feedback Score: 0 reviews
Recipes 
 
Join Date: Aug 2008
Location: SE Michigan
Posts: 155
Default a$$ awful efficiency

So, I'll save you the gory details, but my first AG i got 62% efficiency. I just finished my second, and I got 55% efficiency. I believe the problem is my temperatures. I hit my mash a little low, 149. It took about 20 minutes to boil enough water to raise the temperature to 154, and I held it there for another 60 minutes. Double batch sparge. First sparge I nailed 168. Second sparge was low, 160. Could my mash and sparge temps be a big issue?

Also, the crush is questionable. I ordered from Northern Brewer. Does anyone have experience with them? Good crush, bad crush.

PH was 5.4. I didn't do an iodine test, but I assumed after 80 minutes it would be pretty well converted. Any other thoughts on what I could improve on? I'm pretty discouraged. Especially since all my bottles are full, I've got two batches now fermenting, so it will be awhile before I get to try again.

Blargh



__________________
BugleBrew is offline
 
Reply With Quote Quick reply to this message
Old 08-12-2008, 10:08 PM   #2
Coastarine
We get it, you hate BMC.
Feedback Score: 0 reviews
 
Coastarine's Avatar
Recipes 
 
Join Date: Apr 2008
Location: New Bern, NC
Posts: 2,582
Liked 20 Times on 18 Posts
Likes Given: 1

Default

I've done 3 AG's from NB and I've been getting 78%. Crush seems ok to me. Not sure what to tell you.



__________________
SEMPER FIDELIS ET SEMPER PARATUS Bringin' the 'pane...the propane.Coming Up:..[Hefewiezen][BCS Robust Porter][EdWort's Haus Pale Ale][Peated Ale]
Fermenting:.
Conditioning:[Oaked Cider][ESB]
On Tap.........[The Munchner][Spiced Cider][English Cider][Simcoe IPA][Triple Hops Grooved][Cider'n 'gnac]
Coastarine is offline
 
Reply With Quote Quick reply to this message
Old 08-12-2008, 10:32 PM   #3
Freddy57
Feedback Score: 0 reviews
Recipes 
 
Join Date: Mar 2008
Posts: 83
Liked 2 Times on 2 Posts

Default

Work on hitting your temps closer and then make sure you drain off your liquid slowly to allow more sugars to leach out of the grains.

__________________
Freddy57 is offline
 
Reply With Quote Quick reply to this message
Old 08-13-2008, 02:27 AM   #4
Joe Camel
Feedback Score: 0 reviews
Recipes 
 
Join Date: Mar 2008
Location: Charlottetown, PE, Canada
Posts: 282
Liked 1 Times on 1 Posts

Default

How much water did you need that it took 20 min to boil it up? How did this addition affect the volumes of your batch sparges? If you had to significantly reduce your batch sparge volumes, that will affect efficiency as well.

__________________

Turn up the good, turn down the suck!
-Deaner

Joe Camel is offline
 
Reply With Quote Quick reply to this message
Old 08-13-2008, 02:51 AM   #5
Kauai_Kahuna
Feedback Score: 0 reviews
Recipes 
 
Join Date: May 2008
Location: Hawaii
Posts: 2,280
Liked 7 Times on 7 Posts

Default

If your doing two batch sparge's of around 2 to 2.5 gal, you want the water to be around 185F to 190F. I'm assuming that when you 168 and 160 your talking about the bed temperature. Test for conversion, take gravity readings of each extraction to ensure your getting what you should be. Stir very well after adding the sparge water, then wait 10-15 minutes to let diffusion work, then drain. Then post you volumes and gravity.

__________________

---
In Primary: Belgium Chimay clones.
In Secondary: Braggot, pale ale, end of the world white.
Conditioning: Mead, Cider, braggot, Belgium Wheat.
On Tap: Clones, Chimay Blue, Red, Porter, malted cider.
Bottles: Far, far, too many to list.

Kauai_Kahuna is offline
 
Reply With Quote Quick reply to this message
Old 08-13-2008, 12:41 PM   #6
p4ck37p1mp
Feedback Score: 0 reviews
Recipes 
 
Join Date: Feb 2008
Location: Acworth, GA
Posts: 399
Liked 1 Times on 1 Posts

Default

Make sure your thermos are calibrated as well! That screwed me a few batches until I got a new one that was accurate.

__________________
'Insert Name Here' Brew Club (North Atlanta Metro Area)

-- "Unix is user friendly. However, it isn't idiot friendly."
p4ck37p1mp is offline
 
Reply With Quote Quick reply to this message
Old 08-13-2008, 10:35 PM   #7
malkore
Feedback Score: 0 reviews
 
malkore's Avatar
Recipes 
 
Join Date: Jun 2007
Location: Nebraska
Posts: 6,922
Liked 32 Times on 30 Posts
Likes Given: 9

Default

post recipe. i'd liek to see the grain bill mostly. perhaps you were too heavy on malts that cannot convert themselves.

__________________
Malkore
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
malkore is offline
 
Reply With Quote Quick reply to this message
Old 08-14-2008, 05:23 PM   #8
smizak
Feedback Score: 0 reviews
Recipes 
 
Join Date: Dec 2007
Location: Buffalo, NY
Posts: 1,654
Liked 50 Times on 38 Posts
Likes Given: 18

Default

If your grain is from NB, I'm gonna go with the crush. Last batch of grain I ordered had a HORRIBLE crush. I'm guessing 80% or more of the kernels were completely intact and not crushed.

To their credit, they gave me a gift certificate equal to the value of the grain I bought when I complained.

__________________
smizak is offline
 
Reply With Quote Quick reply to this message
Old 08-14-2008, 05:38 PM   #9
EamusCatuli
Feedback Score: 0 reviews
 
EamusCatuli's Avatar
Recipes 
 
Join Date: Jan 2008
Location: Chicago, IL
Posts: 531
Liked 1 Times on 1 Posts

Default

Hey man, I had a 50% eff. last brew on my IPA. Luckily it had a high enough OG to begin with that the sh*t efficiency just made it a lighter beer and it will be fine. Ive never ordered from NB, only AHS. I would say though that your problem is the crush, that was mine on the 50% IPA. My LHBS grain mill sucks donkey dick. When I have a friend crush my grain or when I run it through a mill twice I get great efficiency. I can almost always trace the bad from a bad crush. I have since become a crush nazi, however, and I powderize everything.

__________________
A watched pot does boil!
EamusCatuli is offline
 
Reply With Quote Quick reply to this message
Old 08-14-2008, 05:39 PM   #10
SporkD2
Feedback Score: 0 reviews
Recipes 
 
Join Date: Jun 2008
Location: San Antonio, Texas
Posts: 748
Liked 1 Times on 1 Posts
Likes Given: 1

Default

Quote:
Originally Posted by p4ck37p1mp View Post
Make sure your thermos are calibrated as well! That screwed me a few batches until I got a new one that was accurate.
+1 to thermometers


__________________
SporkD2 is offline
 
Reply With Quote Quick reply to this message
Reply


Quick Reply
Message:
Options
Thread Tools
Display Modes


Similar Threads
Thread Thread Starter Forum Replies Last Post
awful brew day MattHollingsworth General Beer Discussion 2 08-28-2009 10:56 PM
Awful Wit tbeazlie General Techniques 9 09-23-2007 04:57 AM
Just how awful was your first batch? mezman General Beer Discussion 17 01-10-2006 06:12 PM