Confused on Efficiency for Recipie Formulation

Flaming Barrel · Post by **Flaming Barrel** » Tue Sep 30, 2008 8:10 pm

Ive been trying to calculate my efficiency, as I am designing my first grain bill & beer using Designing Great Beers by Ray Daniels.
Using Rays method I found I had 62% efficiency. Using the calculations on this site I found I had 75%.........
The figures I have are : 5kg Maris Otter
300g Crystal

Came out at 1052 for 5 gals (after boil).
Any help appreciated.

Here is my provisional grain bill for my 'Busty' Robust Porter:

Pale 3411g
Crystal 372g
Black 281g
Choc 281g
Munich 168g

For 5 gal
Target 1052 OG
Assume 75% eff.

Help. Any suggestions appriecated.

ade1865 · Post by **ade1865** » Tue Sep 30, 2008 9:10 pm

75% sounds better..

I would humbly suggest that if it works use it. Or perhaps, work out the maths both ways [Daniels and Jims] and see if they come up with the same figure.

I guess you've seen the efficiency thread?

ade1865 · Post by **ade1865** » Tue Sep 30, 2008 9:25 pm

If I'm working this out right, if you get 75% out of that grain bill, you should end up with a wort OG, after boil, of 1043.5 at 23L. [which incidentally is about what i got from a similar volume grain bill for my last effort] But I haven't factored in the different malts, and my maths head is in the bucket at the moment, sterilizing.

Flaming Barrel · Post by **Flaming Barrel** » Tue Sep 30, 2008 9:29 pm

Yeh just found it a while ago, also confirmed 75% so i should be happy, but i need to be sure so i can formulate my grain bills properly.
Can't drink today, off work sick, kidneys hurt....payback for 20 years abuse!
Gonna try & design my russian imperial stout next.

ade1865 · Post by **ade1865** » Tue Sep 30, 2008 9:33 pm

heavy weekend chap?

Flaming Barrel · Post by **Flaming Barrel** » Tue Sep 30, 2008 9:34 pm

The two sets of figures I have one in the book & JBK are wildly different, might try & download some software, I thought that was cheating.

ade1865 · Post by **ade1865** » Tue Sep 30, 2008 9:34 pm

and seeing as we have a fairly similar setup i guess we should get similar efficiency?

ade1865 · Post by **ade1865** » Tue Sep 30, 2008 9:36 pm

cheating? lol. let me know how you get on

Flaming Barrel · Post by **Flaming Barrel** » Tue Sep 30, 2008 9:37 pm

Really Ill, caught it off wifey. Wouldn't mind if it was self inflicted.

TC2642 · Post by **TC2642** » Tue Sep 30, 2008 9:42 pm

Flaming Barrel wrote:Yeh just found it a while ago, also confirmed 75% so i should be happy, but i need to be sure so i can formulate my grain bills properly.
Can't drink today, off work sick, kidneys hurt....payback for 20 years abuse!
Gonna try & design my russian imperial stout next.

Mmmmmm, Russian Imperial Stout. Give it a good year before you try it if you can, well worth it.

Jymbo · Post by **Jymbo** » Tue Sep 30, 2008 9:48 pm

Ray Daniels uses US gallons as opposed to UK gallons. I made this mistake a while back and found that when I used the correct conversion figures the numbers worked out much better. Just a suggestion........

ade1865 · Post by **ade1865** » Tue Sep 30, 2008 9:51 pm

a light goes on somewhere in Devon!

Flaming Barrel · Post by **Flaming Barrel** » Tue Sep 30, 2008 10:00 pm

Aaaaggghhhhh, BING! (My almighty groan followed by the light).

Jymbo · Post by **Jymbo** » Tue Sep 30, 2008 10:16 pm

......hence the Einstein Avatar

Flaming Barrel · Post by **Flaming Barrel** » Wed Oct 01, 2008 3:42 pm

Genius, thanks, shouldn't you be fixing the LHC ?

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Confused on Efficiency for Recipie Formulation

Confused on Efficiency for Recipie Formulation