Originally Posted by dap325
Daril Brothers Homebrewery - Science
From what I understood, it is based on a calculation using degL/lb/gal. A quote from that link.....
"A rule sometimes used by homebrewers is that the color contributed by a malt is equal to its concentration in pounds per gallon times its color rating in degL."
After reading that link and some excel spreadsheet action, it all makes sense. Thanks dude
I will try to explain in case anyone else wants to know. Assume a 5 gallon batch for this example. The formula is: degrees Lovibond * pounds / gallons
Let's say I'm trying to clone Imperial YSB
, which is listed as 35 degrees Lovibond.
To come up with the grain bill, I can start with this:
11 lbs Pale 2 row @ 3.5 degrees Lovibond = 11 * 3.5 / 5 = 7.7
1 lbs Crystal 60 @ 60 degrees Lovibond = 1 * 60 / 5 = 12
1 lbs Cyrstal 80 @ 80 degrees Lovibond = 1 * 80 / 5 = 16
7.7 + 12 + 16 = 35.7
Pretty close. I have no idea if these are the correct crystal malts or correct proportions, but at least it is a starting point if I want to try to clone it.
The confusing part is that if you input these ingredient into BeerTools, it lists the color as 18.01 SRM. This was the source of my confusion.