Mash tun size/O.G. formula
Looking for some help with finding a good formula for calculating the following:
Brewing 10bbl batches, what is the highest O.G. beer that can be mashed in a 300 gallon total volume mash tun and not have the mash tun overflow. Mashing in with 1.5qts water/lb of grain.
Thank you for your assistance!
Last edited by Catfish002; 02-27-2017 at 01:43 PM.
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Very helpful calculators. Thank you so much!
Originally Posted by dmartin
Plenty of software (including free website calculators of varying accuracy) to calculate how much total volume you'd need for a certain mash size, but the OG will depend largely on your brewhouse efficiency - and to a lesser extent on the type of grain used.
A tun with 300-gallon useful mash capacity should accommodate about 650 pounds of grain at 1.5 quarts/pound.
https://www.rackers.org/calcs.shtml (see the "can I mash it?" section)
The calculation itself, as far as I know, goes something like this:
[mash water in gallons] + ([pounds of grain] * .08) = Gallons Total Mash Volume
So for this example of 650 lb grain @ 1.5 qt/lb:
650 * 1.5 = 975 quarts mash water...
975 / 4 = 243.75 gallons mash water...
(243.75) + (650 * .08) = 295.75 Gallons Total Mash Volume
Thank you. Very helpful info!
Originally Posted by Yellowbeard