all grain efficiency - Home Brew Forums
Register Now For Free!

Home Brew Forums > Home Brewing Beer > All Grain & Partial Mash Brewing > all grain efficiency

Reply
 
Thread Tools
Old 11-25-2007, 05:55 PM   #1
eriktlupus
 
eriktlupus's Avatar
Recipes 
 
Jan 2007
Cereal City, USA
Posts: 2,618
Liked 13 Times on 11 Posts



help me figure this out plz

i can't seem to get above 60-65% on my ag brews
did a oberon clone today
6# 2 row
4.5# wheat
.75# carapils
.75# munich
.67 oz hallertau 60min
.9 oz hallertau 35min
.33 oz hallertau 5min
1 oz saaz 5min

mashed in with 15 qts @166* used 1 tbs of 5*2 ph stabilizer
temp 155-154 over 1 hr
batch sparge twice w 1.7 g of 168*
initial drain was 1.060 first sparge 1.020 second sparge 1.010
ended with 5.5 gal into fermentor @ 1.050
__________________
primary1 :UTOPIA BABY(still searching for it)
secondary:middling bastard ipa
kegged:simcoe blonde, crystal pale ale, yellow jacket golden ale, lemon shandy blonde
DRINKIN DAWG BREWERY
LET'S GO RED WINGS


join michigan mashers here

extraction calculator
grains in pounds(G) X 36(average points per gallon of grains) / batch size in gallons(g) = maximum efficiency(ME)
OG / ME = brewhouse efficiency

 
Reply With Quote
Old 11-25-2007, 06:07 PM   #2
Got Trub?
Recipes 
 
Apr 2007
Washington State
Posts: 1,538
Liked 10 Times on 8 Posts


What is your preboil volume and gravity? This will help us figure out your mash efficiency.

What is your post boil total volume? ie what is in your brewpot when you turn the flame off.

How is your grain crushed? - the most common cause of poor efficiency.

GT

 
Reply With Quote
Old 11-25-2007, 06:30 PM   #3
Orfy
For the love of beer!
HBT_LIFETIMESUPPORTER.png
 
Orfy's Avatar
Recipes 
 
Sep 2005
Cheshire, England
Posts: 11,732
Liked 95 Times on 62 Posts


There are several big factors.
If you get everything right all the temperatures, volumes, PH, time etc.

Then the thing that you can't change once you've done it is the cruch ov the malt and the potential of the malt.

I have had a 20% decrease and it's purely down to the malt and the crush. There is nothing I can do about it so I just adjust my recipes for it. It took me 3 recipes before I got it correct and I'm now back to getting my OG within a point or so.

The first two recipes I just boiled for longer to compensate an ended up with a lower abv but the correct OG and FG for the recipe.
__________________
GET THE GOBLIN
Have a beer on me.

 
Reply With Quote
Old 11-25-2007, 07:11 PM   #4
Bsquared
HBT_LIFETIMESUPPORTER.png
 
Bsquared's Avatar
Recipes 
 
Oct 2006
San Diego
Posts: 1,851
Liked 67 Times on 59 Posts


One thing is what was the temp of the wort when you took the reading? A 1.050 reading with wort at 100F has an actual gravity of 1.056.

Also did you sparge with a total of 3.2 Gallons? how long did you let it flow through? The slower the better, I typically sparge once for 45min to 1hour.

I did a little calculation too and with a grain to water ratio of 1.25 (12lb/15quarts) that you used, you should have used 3.75 Gallons @ 170F to mash and 4.8 gallons of water to sparge , for a 5 gallon batch.

Hope that helps, I'm new to this too. I have about 20 AG batches under my belt and I'm finally getting above 80%

 
Reply With Quote
Old 11-25-2007, 11:28 PM   #5
eriktlupus
 
eriktlupus's Avatar
Recipes 
 
Jan 2007
Cereal City, USA
Posts: 2,618
Liked 13 Times on 11 Posts


all gravities were taken @ 72*
pre-boil vol. @6.5 gal
no ph test(not capable at this yime)
crush looked good but did forget to adjust for whaet kernels
what do you set your gaps at for wheat?
__________________
primary1 :UTOPIA BABY(still searching for it)
secondary:middling bastard ipa
kegged:simcoe blonde, crystal pale ale, yellow jacket golden ale, lemon shandy blonde
DRINKIN DAWG BREWERY
LET'S GO RED WINGS


join michigan mashers here

extraction calculator
grains in pounds(G) X 36(average points per gallon of grains) / batch size in gallons(g) = maximum efficiency(ME)
OG / ME = brewhouse efficiency


 
Reply With Quote
Old 11-30-2007, 05:06 AM   #6
Got Trub?
Recipes 
 
Apr 2007
Washington State
Posts: 1,538
Liked 10 Times on 8 Posts


Erik - your numbers don't add up. I calculate you had 6.5g of 1.036 wort to start so would have ended up with 5.5g of 1.044 wort for pitching. Have you calibrated all your gear?

GT

 
Reply With Quote
Reply
Thread Tools


Similar Threads
Thread Thread Starter Forum Replies Last Post
1st all grain, efficiency? irishod89 All Grain & Partial Mash Brewing 4 10-04-2009 03:42 PM
Grain Efficiency Help piperbrew All Grain & Partial Mash Brewing 2 06-08-2009 03:47 AM
Efficiency and grain claphamsa Equipment/Sanitation 3 03-24-2009 02:37 PM
first all grain done 54% efficiency hotammo All Grain & Partial Mash Brewing 10 12-30-2007 04:22 AM
All Grain Efficiency Brewpastor General Techniques 32 03-27-2007 03:07 AM


Forum Jump