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tireater 04-18-2009 05:17 PM

Understanding effiency....
 
I'm going to do my first AG batch...How do I tell my effiency ?

tireater 04-18-2009 05:26 PM

I understand how to change receipes depending on the different effiencies...
I just don't know how to figure out mine...

The Pol 04-18-2009 05:28 PM

Best to use some brewing software:

Basically each pound of malt has an extract potential. Say, 2-row has about 36 points per pound, per gallon. So ONE pound in ONE gallon at 100% eff. would be an OG of 1.036

If you had 70% eff. in that same gallon, youd have an OG of 1.025

SO, if you have 10 pounds of 2-row, that is 360 potential points of gravity in ONE gallon. If you are making 5 gallons you divide that by 5... that is 1.072 if you have 100% eff. Say your OG is actually 1.050 in 5 gallons with 10 pounds of 2 row... that is 50/72 which is 70% eff.

Brewing software helps, but it can be done with a little math by hand.


It is your ACTUAL OG divided by the POTENTIAL OG of the brew. Each malt has a specific # of points/lb. Most are between 34 and 36 points, meaning 1.034 to 1.036 per pound of malt, in one gallon, at 100% eff.

You will get about 70% of the total as a good starting point.

jkarp 04-18-2009 05:30 PM

Just fill in the blanks here.

tireater 04-18-2009 05:39 PM

I guess the thing I didn't understand was how to figure out the 100% effiency point number..I get it now...
You guys are a great help..I have really bad ADHD and some times it is hard for me when it gets too technical..

The Pol 04-18-2009 05:43 PM

Quote:

Originally Posted by tireater (Post 1268757)
I guess the thing I didn't understand was how to figure out the 100% effiency point number..I get it now...
You guys are a great help..I have really bad ADHD and some times it is hard for me when it gets too technical..

Quick math is my strong suit, I am used to calcualting fuel needed and fuel burns while getting bounced in a holding pattern over the Rockies when they shut down Denver ;) You have to be right, and you have to be fast!

Looking forward to hearing about a successful brew day!

AZ_IPA 04-19-2009 03:51 AM

Quote:

Originally Posted by The Pol (Post 1268764)
Quick math is my strong suit, I am used to calcualting fuel needed and fuel burns while getting bounced in a holding pattern over the Rockies when they shut down Denver ;) You have to be right, and you have to be fast!

Looking forward to hearing about a successful brew day!

Note to self - I hope Pol's flying when I'm in a holding pattern over the Rockies when they shut down Denver....


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