explain efficiency please? - Home Brew Forums

 Home Brew Forums > explain efficiency please?

02-01-2013, 09:56 PM   #1
GeorgiaTiger

Recipes

Nov 2012
Marietta, Ga
Posts: 473
Liked 81 Times on 50 Posts

The recipe I did last night said it would make 5 gallons at 75% efficiency. How can I tell what my efficiency was? I think it has to do with my OG, right? Mine was 1.057 at 70 degrees, which would make it 1.058 after adjustment for temp. How do I know what my efficiency was?
__________________
Allen
"Im an airlock sniffer...I sniff airlocks"
Primary 1: American Pale Ale
[b]Primary 2: Empty
CU in the Valley HomeBrewing

02-01-2013, 09:59 PM   #2
beergolf

Recipes

Jan 2011
collingswood, nj
Posts: 6,052
Liked 1239 Times on 844 Posts

It has to do with the amount of grain you mash and what OG you ended up with.

Here is a way to calculate it. Just put in your ingredients and the gravity and it will five you your efficiency.

http://www.brewersfriend.com/brewhouse-efficiency/

02-01-2013, 10:02 PM   #3
rklinck
Member

Recipes

Nov 2012
Washington, DC
Posts: 670
Liked 67 Times on 56 Posts

It is a measure of the percentage of the total possible sugar you get out of your grain. E.g., if the total potential for your grain bill is an OG of 1.050 and you end up with 1.040, your efficiency was 80%. I think I did that math right.

02-02-2013, 12:07 AM   #4
Bobby_M
Vendor and Brewer

Recipes

Aug 2006
Whitehouse Station, NJ
Posts: 23,403
Liked 1813 Times on 1151 Posts

In order to calculate efficiency you need a list of grains (and their weight), the original gravity measured and the exactly volume measurement of wort you had when that OG measurement was made.
__________________
Welcome to BrewHardware.com. I love you.
New Stirplates are IN!
Chugger Pumps, Pump Kits, Camlocks, Sightglasses, Clear USA made Silicone Tubing, RIMS, Electric Install Parts, etc.

02-02-2013, 07:43 AM   #5
C-Rider
Senior Member

Recipes

Feb 2011
Wai, Hawaii
Posts: 3,598
Liked 340 Times on 280 Posts

Quote:
 Originally Posted by beergolf It has to do with the amount of grain you mash and what OG you ended up with. Here is a way to calculate it. Just put in your ingredients and the gravity and it will five you your efficiency. http://www.brewersfriend.com/brewhouse-efficiency/
Yup, that's the one I use.
__________________
Kaiser Ridge Brewing
-------------------------
Fermenting: Trump This IPA
Fermenting: Old Glory Stout
Fermenting: Joe Louis IPA (black)
Bottled in the refer Vanilla Porter
Bottled in the refer: Malahini Pale Ale
Bottled in the refe: American Imperial Stout
Bottled in the refer Oktoberfest

.