Efficiency Calculation: include non-fermentable adjuncts? - Home Brew Forums

Register Now!
Home Brew Forums > Home Brewing Beer > All Grain & Partial Mash Brewing > Efficiency Calculation: include non-fermentable adjuncts?

Reply
 
Thread Tools
Old 08-16-2009, 11:55 PM   #1
Jknapp
 
Jknapp's Avatar
Recipes 
 
Aug 2009
Seattle
Posts: 215
Liked 4 Times on 4 Posts



Using Palmers efficiency calculation, should I include non-fermentables like Flaked Oats in the total poundage of the grain bill, or exclude them?

I just brewed a stout using 1lb of oats in the receipe. Total GB including oats was 12.25lb, which gives me a efficiency of 29.7 prior to boil. If I don't count the oats, that gets me 31.3. I'm stoked about either number, but not sure which one counts.

12.25lb (1lb oats), yield 7.75 gals @ 1.047 (after temp adjustment).

How then, do I calculate the my percentage efficiency?

 
Reply With Quote
Old 08-17-2009, 12:06 AM   #2
Yooper
Ale's What Cures You!
HBT_ADMIN.png
 
Yooper's Avatar
Recipes 
 
Jun 2006
UP of Michigan, Winter Texan
Posts: 69,253
Liked 7739 Times on 5431 Posts


I don't think I understand what you're asking. Oats provide fermentable sugars after the mash, just as barley does. So do corn, rice, and other adjuncts. They are part of the mash, and contibute to the OG of the beer.
__________________
Broken Leg Brewery
Giving beer a leg to stand on since 2006

 
Reply With Quote
Old 08-17-2009, 01:39 AM   #3
Jknapp
 
Jknapp's Avatar
Recipes 
 
Aug 2009
Seattle
Posts: 215
Liked 4 Times on 4 Posts


I'm a noob. I thought the oats only added silkyness or mouthfeel.. You taught me something there. Thanks!

How do I determine my "brewhouse efficiency" from the numbers I got today?

 
Reply With Quote
Old 08-17-2009, 11:35 AM   #4
roylee
Recipes 
 
Aug 2008
Posts: 97
Liked 3 Times on 3 Posts


Brewers friend (goggle it) has a brewhouse efficiency caluclator that's easy to use.

 
Reply With Quote
Old 08-17-2009, 01:55 PM   #5
david_42
 
david_42's Avatar
Recipes 
 
Oct 2005
Willamina & Oak Grove, Oregon, USA
Posts: 25,593
Liked 151 Times on 142 Posts


Efficiency is extraction efficiency. It doesn't matter if the sugars are fermentable or not.
__________________
Remember one unassailable statistic, as explained by the late, great George Carlin: "Just think of how stupid the average person is, and then realize half of them are even stupider!"

"I would like to die on Mars, just not on impact." Elon Musk

 
Reply With Quote
Old 08-17-2009, 02:05 PM   #6
Malticulous
 
Malticulous's Avatar
Recipes 
 
Aug 2008
St. George Utah
Posts: 4,143
Liked 72 Times on 57 Posts


Things like honey, sugar and syrups (even LME/DME) should not be part of the calculation because they don't get converted and will yield a false higher percentage.
__________________
Everything is better with a beer.

 
Reply With Quote
Reply
Thread Tools


Similar Threads
Thread Thread Starter Forum Replies Last Post
Efficiency calculation for my weird first AG brew Rick500 All Grain & Partial Mash Brewing 3 07-14-2009 02:17 AM
efficiency calculation question-BeerAlchemy? schristian619 All Grain & Partial Mash Brewing 4 05-03-2009 07:37 PM
Adjuncts in calculating efficiency batfishdog37 All Grain & Partial Mash Brewing 2 03-23-2009 06:11 PM
efficiency calculation correct? planenut All Grain & Partial Mash Brewing 3 09-24-2008 04:32 PM
Efficiency Calculation Jayfro21 All Grain & Partial Mash Brewing 3 11-18-2007 05:00 PM


Forum Jump