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chemman14 11-05-2009 05:10 AM

beer smith OG estimate
 
My last 3 brews have been from the book brewing classic styles. Whenever I put all of the ingredients into beer smith the OG that it estimates is usualy about 10 points higher than the OG in the book. This also is around the OG i get when I actually brew the batch. Why would the estimated OG in the book be different from the OG in beer smith?

Bokonon 11-05-2009 05:26 AM

I believe the recipes in the book are formulated for 6 gallons in the kettle, 5.5 into the fermenter, and 5 gal into bottles/keg

chemman14 11-05-2009 05:35 AM

Quote:

Originally Posted by Bokonon (Post 1656897)
I believe the recipes in the book are formulated for 6 gallons in the kettle, 5.5 into the fermenter, and 5 gal into bottles/keg

right, which is what i do and its 7 gallons in the kettle 5.5 to fermenter and 5 at the end

Hammy71 11-05-2009 10:41 AM

Well just make sure you enter the batch size as 5.5....beersmith doesn't care what you put in your fermenter...just what you have in the pot when the boil is over. I've never read the book so, what effeciency are the recepies quoted as? I've forgot to change that in beersmith several times....

stevo155 11-05-2009 01:52 PM

The Brewing Classic Styles and Jamil Show ( including Can You Brew It ) are for 6 gallons at the end of boil, 5.5 in the fermentor, and then 5 in the keg. Efficiency is 70%.

I usually hit the gravity numbers in Beersmith, but the IBU's ( using Rager ) are off sometimes. Most of the time I just say the heck with it.

jamilz 11-05-2009 05:30 PM

All of that information and more is in the book in the section "Brewing These Recipes." Page 39.

JVD_X 11-05-2009 05:53 PM

I have noticed the same thing but if you follow the recipe you will get close enough. I found that following the Beersmith recipe will hit dead on every time, so just adjust the values a little bit to get to the gravity to match the book. I am sure JZ and JP won't be offended.


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