Brewer’s Friend

Mash Infusion and Rest Schedule Calculator

Infusion mash calculator with rest steps. Use this calculator to find out your strike water temperature and volume, and if you are performing additional rests you can plan them out in advance.

Initial Infusion:
Grain Weight:	(lb)
Grain Temperature:	(F)
Mash Water/Grain Ratio:	(quarts / pound)
Target Temperature:	(F)
Volume of strike water:
Temperature of strike water:

Additional Rests Planned Infusions:
Input addtional target temperatures to find out how much boiling water to add to the mash tun. Step Target Temp (F) Infusion Needed Quarts/pound 1. 155 1.25 2. 3. 4. 5.   Total Infusion:

These calculations assume zero heat loss. If you do not pre-heat your tun, a few degrees will be absorbed by the mash tun. If you are doing a multi-step infusion, keep in mind the mash temperature will have dropped slightly during rest and you may need to compensate.

If you are in the middle of mashing and need to figure out how much boiling water you need to get to your next rest, check out our Quick Infusion Calculator.