Adjusting recipe for efficiency - Home Brew Forums

Register Now!
Home Brew Forums > Home Brewing Beer > All Grain & Partial Mash Brewing > Adjusting recipe for efficiency

Reply
 
Thread Tools
Old 07-03-2011, 07:52 PM   #1
CarlJF
Recipes 
 
Jul 2011
Quebec, QC
Posts: 2


Hi guys!

I want to make a recipe (all grains) that is based on 70% efficiency. However, I'm usually around 75%. I'm wondering what is the conventional way of scaling the recipe for the new efficiency. Actually, I'm seeing three possibilities:

1- Do the recipe as per 70% and add some water before fermentation to dilute the mash to the coorect OG. Problem: I will have to adjust the hops amount to compensate the larger volume.

2- Adjust all the grains to get the correct OG after the boil. Problem: putting less crytal malts, which don't add much to the OG, will certainly affect the color and the taste.

3- Adjust only the base malts. Seems to be right way...

So, I think of going with option 3. Is there anything I missed here ? Is there a better or standard way to do this kind of conversion ?

 
Reply With Quote
Old 07-03-2011, 08:25 PM   #2
SethMasterFlex
Recipes 
 
Sep 2010
Chicago, IL
Posts: 186
Liked 2 Times on 2 Posts


As long as you are keeping batch size the same, adjust only your base malt. Half a pound of crystal in 5 gallons is still half a pound of crystal in 5 gallons, as for all other specialty malts.

You're going to be getting the same percentage of sugars from your base malt with 75% efficiency as the brewer who adds more malt at 70% efficiency, so your specialty malt percentages will still be the same. This may not be properly represented in something like beersmith as it just tells you the percentage of base vs specialty malts regardless of efficiency.

 
Reply With Quote
Old 07-03-2011, 08:28 PM   #3
cadarnell
Recipes 
 
Dec 2010
Bloomington In., Indiana
Posts: 538
Liked 36 Times on 12 Posts


i usually scale eveything back ... maybe I'm doing it wrong, but the beer is good ..

 
Reply With Quote
Old 07-03-2011, 09:12 PM   #4
jldc
HBT_LIFETIMESUPPORTER.png
 
jldc's Avatar
Recipes 
 
Nov 2008
Posts: 661
Liked 7 Times on 7 Posts


For minor corrections, I would just adjust the base malt. If your changing the amount of base by more than a lb, and certainly more than 2 lb, then I would scale all the grains.

L

 
Reply With Quote
Old 07-03-2011, 09:57 PM   #5
RoadKing
 
RoadKing's Avatar
Recipes 
 
Oct 2005
Bayville, N.J.
Posts: 467
Liked 20 Times on 17 Posts


I use Beer Smith and it easily does all the calculations for me.
I'm sure most of the other brewing software will too.

 
Reply With Quote
Old 07-04-2011, 02:46 PM   #6
dcp27
Recipes 
 
Jan 2010
Medford, MA
Posts: 4,125
Liked 125 Times on 121 Posts


#3

 
Reply With Quote
Old 07-04-2011, 02:47 PM   #7
skibb
Recipes 
 
Jul 2009
Lexington
Posts: 493
Liked 50 Times on 38 Posts


I tend to look at recipes more in percentages of malts rather than a lb here or 8 oz there... So when I adjust a recipe for my efficiency (which is usually crazy high, like 90, for anything up to 1.060) I scale every malt back to keep the same percentages. Though with some malts keeping the same percentages just wont do, i.e. Acid malt for me, seems to not contribute as much with such high efficiency. I brewed a Gose a while back with 10% acid malt (turned out to be about a lb in a 6 gallon batch) and it ended up being only a slightly tart beer (I used untreated RO water).

 
Reply With Quote
Old 07-04-2011, 02:50 PM   #8
Yooper
Ale's What Cures You!
HBT_ADMIN.png
 
Yooper's Avatar
Recipes 
 
Jun 2006
UP of Michigan, Winter Texan
Posts: 69,230
Liked 7723 Times on 5424 Posts


Quote:
Originally Posted by skibb View Post
I tend to look at recipes more in percentages of malts rather than a lb here or 8 oz there... So when I adjust a recipe for my efficiency (which is usually crazy high, like 90, for anything up to 1.060) I scale every malt back to keep the same percentages.
Me too. If a recipe is 85% two-row and 15% crystal malt, it doesn't matter if you've got 75% efficiency or 55% as long as you scale for your desired OG. The percentages should be what doesn't change- the amount of each grain will. You should scale all grains, except those used for pH adjustments or to prevent stuck sparges (ie acid malt or rice hulls).
__________________
Broken Leg Brewery
Giving beer a leg to stand on since 2006

 
Reply With Quote


Reply
Thread Tools


Similar Threads
Thread Thread Starter Forum Replies Last Post
One recipe gets poor efficiency?? gratefuldisc All Grain & Partial Mash Brewing 9 05-23-2011 09:02 PM
Adjusting grain bill to gain efficiency... chaydaw All Grain & Partial Mash Brewing 2 02-05-2011 04:26 PM
Adjusting grain bill for efficiency Mongo64 All Grain & Partial Mash Brewing 8 12-17-2009 06:52 PM
Question about adjusting recipes to match your efficiency... dsuarez All Grain & Partial Mash Brewing 6 10-29-2008 03:07 PM
Horrible efficiency - is it the recipe? BrewBrain All Grain & Partial Mash Brewing 8 06-16-2008 01:25 PM


Forum Jump