Building a Recirculating Infusion Mash System for your brewing pleasure

If you’re into all-grain brewing a little automation goes a long way. [Tom Hargrave] had his eye on a Recirculating Infusion Mash System (RIMS) but the price tag kept him from pulling the trigger. Recently he bit the bullet and built his own small and inexpensive RIMS for use with the 10 gallon cooler he uses as a mash tun.

Mashing is the part of brewing process that collects sugars from the milled grains. Water needs to move through the grain mash and should be kept within a narrow temperature window. This RIMS hardware does that automatically by combining a pump, the heating element from an electric water heater, and a temperature sensor. The wooden disc fits on the top of the mash tun and tubing lets the pump move the liquids as needed. The one thing missing from this build is the PID controller to automate the process. After the break we’ve embedded a video from a separate project that shows off how the PID control would work with a system like this one.

If you’re into automated home brewing you’ll also like this mini-batch brewing setup.

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