Originally Posted by mendozer
i did read it but it was confusing. if i get a 52 qt and divide by 5 for a max OG. I get 176.8. does that mean 1.176?
All the chart shows is the amount of grain that can be fit into a certain size mash tun. (How big your mash tun needs to be) Are you figuring out what your mash tun size needs to be? or do you already have a mash tun at 52 quarts.
If you already have a 52 quart mash tun the grid shows at 70%-80% those gravity numbers are possible, but that depends solely on how you mash the grain, how your grain was milled, how accurate your mash temp is, etc.
With a 52 quart mash tun and 31.2lbs of grain it is possible to reach those efficiencies, its not saying if you have a 52qt mash tun with 31.2lbs of grain you will either get 70-80% efficiency.
If someone would like to brew a 10 gallon batch of beer (with 52qt mash tun) with a gravity of 1.105 gravity reading because they know that there system of brewing brings 80% efficiency out of the grain. Then there tun would require more grain, which in fact the 52 quart would not be big enough.
What is your batch size?
What is your desired OG?
Taken from post #9 (Desired
OG x Batch Size)/17 = mash tun size
For my size mash tun I took my desired OG 1.060 x batch size 30 gallons / 17
(60 x 30) /17 = 105 qt mash tun. Roughly a ~6% beer
If I want Higher gravity beer then lets say desired OG is 1.080
(80 x 30) /17 = 141 qt mash tun. Roughly a ~8.9% beer
No Worries, I just figured out the grid after I posted about How Big My Mash Tun Should Be :-)