Will My Mashtun Be Big Enough?

I am planning a 10 gallon imperial stout. It will call for 39 lbs of grains. Will my keggle be large enough?? Please say yes!

Possibly, but it’ll be a tight fit.

Check out the “Can I Mash It?” calculator at

I don’t know how much volume a keggle has. This appendix from Palmer’s on line book may help with your calculations.

http://howtobrew.com/book/appendices/ap ... ng-the-tun

I think Green Bay Rackers has a calculator on their site.

How much of those grains are specialty grains. Those don’t need to be mashed . Do a thick mash and double sparge. Steep your specialty grains in the wort. You can start steeping as soon as you get your first runoff.