Decoction Calculator

This tool will calculate your decoction mass needed to raise from temp A to temp B (Temperatures in °F).

Pounds of grain in mash:
Quarts of water in mash:
Temperature of mash:
Target Temperature:
Temperature of Decoction:
NOTE: These next two fields are used to determine how much more decoction must be pulled to compensate for the mash tun heat capacity. My tun is a 1/2 bbl keg, and using a factor of 1 and 30 lbs works for me. I would guess that a mash tun made from a cooler would use a lower factor because the whole mass of the cooler doesn't need to be heated up (maybe try .3 as the factor and adjust as necessary).
Mash Tun Thermal factor:
Mash Tun Mass: (lbs)
Decoction Volume (pints)