dennydeaton
Apprentice
- Joined
- Dec 7, 2011
- Messages
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Hi,
I've read through the related posts on this forum (and others). I also saw the related BeerSmith blog from 2008. But still haven't found a clear answer as to how BeerSmith calculates the total SRM for a recipe. I know it uses Morey's Formula, but I'm unsure of the exact MCU calculation it inputs and how it derives that from the grain data. I want a better understanding of how this works.
Here is a simple example that I went through and calculated it manually. I also ran the same ingredients through BeerSmith but the results are not matching up. Could anyone tell me the discrepancy?
volume (post-boil): 7.02
grain1: 5lbs @ 2.0SRM (American 2-row)
grain2: 2lbs @ 23.0SRM (Biscuit Malt)
For reference: SRM = 1.4922 [(MCU) ^ 0.6859]
1.4922 * ((5*2)/volume) ^ 0.6859) = 1.90206086681
1.4922 * ((2*23)/volume) 0.6959) = 5.5204466145
1.90206086681 + 5.5204466145 = 7.42 SRM
Beersmith calculates the same ingredients at 6.4 SRM
I've read through the related posts on this forum (and others). I also saw the related BeerSmith blog from 2008. But still haven't found a clear answer as to how BeerSmith calculates the total SRM for a recipe. I know it uses Morey's Formula, but I'm unsure of the exact MCU calculation it inputs and how it derives that from the grain data. I want a better understanding of how this works.
Here is a simple example that I went through and calculated it manually. I also ran the same ingredients through BeerSmith but the results are not matching up. Could anyone tell me the discrepancy?
volume (post-boil): 7.02
grain1: 5lbs @ 2.0SRM (American 2-row)
grain2: 2lbs @ 23.0SRM (Biscuit Malt)
For reference: SRM = 1.4922 [(MCU) ^ 0.6859]
1.4922 * ((5*2)/volume) ^ 0.6859) = 1.90206086681
1.4922 * ((2*23)/volume) 0.6959) = 5.5204466145
1.90206086681 + 5.5204466145 = 7.42 SRM
Beersmith calculates the same ingredients at 6.4 SRM