Efficiency - Home Brew Forums
Register Now For Free!

Home Brew Forums > Home Brewing Beer > All Grain & Partial Mash Brewing > Efficiency

Reply
 
Thread Tools
Old 01-20-2013, 06:08 PM   #1
SOMDBrewer
Recipes 
 
Nov 2011
north beach, MD
Posts: 18
Liked 1 Times on 1 Posts



I just calculated an 87% efficiency on a Wit I made yesterday and I need to know if that is even possible. Here's my work
4.5 lbs of briess pilsen malt with a max ppg of 37.
4.5 lbs of briess white wheat malt with a max ppg of 39
0.5 lbs of rolled oats with a max ppg of 32
I collected 6.5 gallons of wort.
Below are the calculations for 100% efficiency.
37x4.5/6.5=25.6
39x4.5/6.5=27
32x0.5/6.5=2.5
55.1 points or 1.055
I tested my collected wort after stirring and got 12 brix on my handheld refractometer, or 1.048 sg.
48/55 is 87%
I made sure before hand that my refractometer was reading correctly. I work at a sugar plant and know all about Brix. I made 4 different Brix samples at work and tested them on our bench top refractometer and they all tested spot on the hand held. I even warmed the samples to 150 F and tested them to make sure temp didn't affect the readings, as my wort was about that warm.
So did I miss anything here. I just find it hard to believe I really hit that number.

 
Reply With Quote
Old 01-20-2013, 07:55 PM   #2
PJoyce85
 
PJoyce85's Avatar
Recipes 
 
Jan 2013
Mainz, Germany
Posts: 1,069
Liked 325 Times on 189 Posts


Sure it's possible. I have hit 92% before. Only once though. But I am usually in the high 70's and low 80's with my efficiency.

 
Reply With Quote
Old 01-20-2013, 08:02 PM   #3
WoodlandBrew
HBT_SUPPORTER.png
 
WoodlandBrew's Avatar
Recipes 
 
Oct 2012
Malden, MA
Posts: 2,191
Liked 244 Times on 199 Posts


With at least one sparge and more than 4 gallons collected that is completely reasonable. The low weight grain bill will boost you efficiency.

See here for details:
http://woodlandbrew.blogspot.com/sea...ain+less+sugar
__________________
The 2nd edition is now available: Brewing Engineering
Woodland Brewing Research Blog Applied Science for Better Beer.

 
Reply With Quote
Old 01-21-2013, 06:04 AM   #4
Euphist
HBT_LIFETIMESUPPORTER.png
 
Euphist's Avatar
Recipes 
 
Jan 2012
Jacksonburg, WV
Posts: 501
Liked 52 Times on 37 Posts


I do no-sparge BIAB and consistantly get efficiencies in the 80s

 
Reply With Quote
Old 01-21-2013, 06:08 AM   #5
helibrewer
HBT_SUPPORTER.png
 
helibrewer's Avatar
Recipes 
 
Nov 2011
Santa Rosa, CA
Posts: 3,808
Liked 324 Times on 274 Posts


Quote:
Originally Posted by SOMDBrewer View Post
I just calculated an 87% efficiency on a Wit I made yesterday and I need to know if that is even possible. Here's my work
4.5 lbs of briess pilsen malt with a max ppg of 37.
4.5 lbs of briess white wheat malt with a max ppg of 39
0.5 lbs of rolled oats with a max ppg of 32
I collected 6.5 gallons of wort.
Below are the calculations for 100% efficiency.
37x4.5/6.5=25.6
39x4.5/6.5=27
32x0.5/6.5=2.5
55.1 points or 1.055
I tested my collected wort after stirring and got 12 brix on my handheld refractometer, or 1.048 sg.
48/55 is 87%
I made sure before hand that my refractometer was reading correctly. I work at a sugar plant and know all about Brix. I made 4 different Brix samples at work and tested them on our bench top refractometer and they all tested spot on the hand held. I even warmed the samples to 150 F and tested them to make sure temp didn't affect the readings, as my wort was about that warm.
So did I miss anything here. I just find it hard to believe I really hit that number.
Absolutely, nice job and congrats...I love Wit
__________________
Something is always fermenting....
"It's Bahl Hornin'"

Primary:
Kegged: Bourbon Barrel Imperial Stout
On Deck: German Lager

 
Reply With Quote
Reply
Thread Tools


Similar Threads
Thread Thread Starter Forum Replies Last Post
Do people report mash efficiency or brewhouse efficiency? thisoneguy All Grain & Partial Mash Brewing 66 07-25-2012 05:37 AM
Mash Efficiency vs Brewhouse Efficiency exe Beginners Beer Brewing Forum 22 12-22-2011 07:09 PM
Mash efficiency vs Post boil efficiency RootDownBrewing Beginners Beer Brewing Forum 1 08-21-2011 12:33 PM
Increassing efficiency or making up for low efficiency mcarb All Grain & Partial Mash Brewing 20 01-12-2011 04:29 PM
calculating efficiency vs brewhouse efficiency inchrisin General Beer Discussion 1 01-25-2010 12:50 AM


Forum Jump