Electric Brewing Supply 30A BCS Giveaway!


Home Brew Forums > Home Brewing Beer > All Grain & Partial Mash Brewing > Percentage conversion
Reply
 
LinkBack Thread Tools
Old 10-03-2012, 02:01 PM   #1
Beer-lord
HBT_LIFETIMESUPPORTER.png
Feedback Score: 0 reviews
 
Beer-lord's Avatar
Recipes 
 
Join Date: Jan 2012
Location: Metairie, La
Posts: 1,219
Liked 127 Times on 103 Posts
Likes Given: 21

Default Percentage conversion

If I have a recipe that is only in percentage, how do I convert to know how many pounds of each grain?
Beersmith has a 'Grain Pct' but you need to add the grain first but when you add the grain, don't you need to know how much to add?
I feel very dumb, even dumber than normal.

__________________
Wherever you go, there you are!
Beer-lord is offline
 
Reply With Quote Quick reply to this message
Old 10-03-2012, 02:16 PM   #2
afr0byte
Feedback Score: 0 reviews
Recipes 
 
Join Date: Aug 2010
Location: Vermont
Posts: 1,420
Liked 71 Times on 60 Posts
Likes Given: 49

Default

Start by guessing at the rough amounts of each grain you think will get you the expected gravity, being sure to keep the correct percentages. Then scale the amounts of each grain up or down proportionally until you get your OG.

__________________
afr0byte is offline
 
Reply With Quote Quick reply to this message
Old 10-03-2012, 02:20 PM   #3
tre9er
Feedback Score: 0 reviews
Recipes 
 
Join Date: Jan 2012
Location: Lincoln, NE
Posts: 4,372
Liked 232 Times on 196 Posts
Likes Given: 35

Default

Quote:
Originally Posted by afr0byte View Post
Start by guessing at the rough amounts of each grain you think will get you the expected gravity, being sure to keep the correct percentages. Then scale the amounts of each grain up or down proportionally until you get your OG.
Yep. That's how I scale on my spreadsheet/recipe-formulator thing. Takes some manipulating but you'll get it.
__________________

_________________________________
Skal!
Den Faaborg Bryggeri

Quote:
Originally Posted by davekippen View Post
Open log Fermenting and gas-can secondary?? I am planning my next brew right now!!
tre9er is offline
 
Reply With Quote Quick reply to this message
Old 10-03-2012, 02:25 PM   #4
afr0byte
Feedback Score: 0 reviews
Recipes 
 
Join Date: Aug 2010
Location: Vermont
Posts: 1,420
Liked 71 Times on 60 Posts
Likes Given: 49

Default

There's also the option of solving the equation with the Excel solver. E.g. for a 95% 2-row and 5% crystal 60 batch, 6 gallons, 1.050 OG (50 gravity points per gallon). 6*50 = .95(37*.8*x)+.05(34*.8*y) ... where .8 (80%) is your efficiency, x=lbs 2-row, y=lbs c60.

EDIT: It's probably easier to split it into this, though: .95*300 = 37*.8*x and .05*300 = 74*.8*y....so x ~= 9.6 and y ~= .55

__________________
afr0byte is offline
 
Reply With Quote Quick reply to this message
Old 10-03-2012, 03:07 PM   #5
Beer-lord
HBT_LIFETIMESUPPORTER.png
Feedback Score: 0 reviews
 
Beer-lord's Avatar
Recipes 
 
Join Date: Jan 2012
Location: Metairie, La
Posts: 1,219
Liked 127 Times on 103 Posts
Likes Given: 21

Default

Here's the percentages:
84% 2 row
4% each of 4 different specialty grains
OG 1.061, FG 1.015
This is for 5 gallons.

So, how's this look
10.75 lbs 2 row
3/4 lb of each of the 4 specialty grains. That's just about 1.064 so a little high but close.
This would be done BIAB.

Thanks for all the info.

__________________
Wherever you go, there you are!
Beer-lord is offline
 
Reply With Quote Quick reply to this message
Old 10-03-2012, 03:17 PM   #6
afr0byte
Feedback Score: 0 reviews
Recipes 
 
Join Date: Aug 2010
Location: Vermont
Posts: 1,420
Liked 71 Times on 60 Posts
Likes Given: 49

Default

That'll probably work as intended, I'd imagine.

__________________
afr0byte is offline
 
Reply With Quote Quick reply to this message
Old 10-03-2012, 03:32 PM   #7
iaefebs
Registered User
HBT_SUPPORTER.png
Feedback Score: 2 reviews
Recipes 
 
Join Date: Aug 2010
Location: West Coast, MI
Posts: 2,663
Liked 242 Times on 176 Posts
Likes Given: 605

Default

Quote:
Originally Posted by Beer-lord View Post
If I have a recipe that is only in percentage, how do I convert to know how many pounds of each grain?
Beersmith has a 'Grain Pct' but you need to add the grain first but when you add the grain, don't you need to know how much to add?
I feel very dumb, even dumber than normal.
In beersmith: open a new recipe with your brew system, and efficiency. Add grain percentages as pounds. Example 84% 2 row becomes 84 pounds, 3.5% is 3.5 pounds, etc. Do this with all the percentages. Don't worry about the gravity till your done entering all grains. NOW go up to the adjust gravity tab and enter your desired OG. This will adjust your grain bill. It really is easy and it is why I prefer recipes in percentages.
__________________
iaefebs is offline
 
Reply With Quote Quick reply to this message
Old 10-03-2012, 03:40 PM   #8
Beer-lord
HBT_LIFETIMESUPPORTER.png
Feedback Score: 0 reviews
 
Beer-lord's Avatar
Recipes 
 
Join Date: Jan 2012
Location: Metairie, La
Posts: 1,219
Liked 127 Times on 103 Posts
Likes Given: 21

Default

It's odd but using Beersmith 2, Brewmate and Brewtarget I get a good deal of varying amounts to make it to 1.061. From 1.059 to 1.071. I still feel like an idiot for having troubling understanding this.

__________________
Wherever you go, there you are!
Beer-lord is offline
 
Reply With Quote Quick reply to this message
Old 10-03-2012, 03:45 PM   #9
iaefebs
Registered User
HBT_SUPPORTER.png
Feedback Score: 2 reviews
Recipes 
 
Join Date: Aug 2010
Location: West Coast, MI
Posts: 2,663
Liked 242 Times on 176 Posts
Likes Given: 605

Default

Her is another method to try from the beersmith video.

http://beersmith.com/building-a-reci...n-percentages/

__________________
iaefebs is offline
 
Reply With Quote Quick reply to this message
Old 10-03-2012, 03:53 PM   #10
Beer-lord
HBT_LIFETIMESUPPORTER.png
Feedback Score: 0 reviews
 
Beer-lord's Avatar
Recipes 
 
Join Date: Jan 2012
Location: Metairie, La
Posts: 1,219
Liked 127 Times on 103 Posts
Likes Given: 21

Default

Thanks, that's the one I started with. It states 1.062 so I'm going with that one. It's just another learning experience for me. Been brewing a long time and kept bypassing any recipes with percentages which is just dumb.

__________________
Wherever you go, there you are!
Beer-lord is offline
 
Reply With Quote Quick reply to this message
Reply



Quick Reply
Message:
Options
Thread Tools


Similar Threads
Thread Thread Starter Forum Replies Last Post
Maximum Oat Percentage? November All Grain & Partial Mash Brewing 3 05-13-2011 01:37 AM
Minimum base malt percentage npauley88 All Grain & Partial Mash Brewing 1 03-25-2011 01:31 AM
MLT Keg Conversion Hopper31 All Grain & Partial Mash Brewing 3 09-28-2007 10:14 PM
Boiloff percentage? Sea All Grain & Partial Mash Brewing 6 09-01-2007 03:23 PM
Percentage of Rice Hulls for Wheat grain DesertBrew All Grain & Partial Mash Brewing 3 10-22-2005 06:57 PM