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Brewing Calculator and Mash Eff

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Jeff M:
Hey All,


    So I'm set up for my first all grain Batch and i have a few questions.  How do you figure out how efficient your Mash is?  IS there a Recipe calculator out there that people use to determine potential sugars so you can take measurements and compare them to the numbers the calculator spits out?  Pretty nervous about doing this the first time:)

Thanks
Jeff

erockrph:
I use Brewers Friend as my brewing software, so it calculates everything out nicely as I log my brewing progress. Here is a standalone version of the efficiency calculator:

http://www.brewersfriend.com/brewhouse-efficiency/

LBC2:
I use beersmith. They have several grain varieties with potential yield already preloaded. Palmer's book also suggests measuring preboil gravity and multiplying the points by the volume (gallons) of wort collected, then divide by the pounds of grain you used. Anything above 27 is great. Below 25 is not good.

Don't be nervous. It's as simple as heating water and mixing grain and waiting. You'll be able to do it with your eyes closed soon and it's a lot more fulfilling than extract brewing IMO. Cheers!

malzig:
Measure the volume (in gallons) and gravity (in SG) in your kettle before or after your boil.  You can probably assume that your grain has a potential of ~36 points per pound per gallon.

pounds of grain x 36 = potential yield

measured gravity x volume = actual yield

100 x actual/potential = mash efficiency (%)

davidgzach:
Definitely invest in some brewing software.  I use BeerTools.  It makes the process that much easier as well as recipe generation.  And remember to have fun and RDWHAHB! 

Dave

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