Monday, February 21, 2011

New mash tun design

The teabag mash/sparge did not scale well to a 10lb/5 gallon batch size. I was using a 15x23 nylon mesh bag which held the grains with about 5 inches of slack on the top. Stirring was almost impossible during the mash and the sparge most likely did very little to run off the grains.

Also with the teabag mash/sparge, it's a real pain to transfer mash liquid out of the pot. Dumping it is fast but adds a lot of aeration; while siphoning would take forever.

The new design is to dump the grains in with the water in the 20qt pot. Transfer the mash water by placing a splatter screen on top of the pot and inverting over a large funnel inside the 34qt pot. Sparge in the 20qt pot and transfer the same way to the 34qt pot.

Actually instead of the lid and splatter screen, I'll try different strainers.