« on: June 05, 2013, 01:36:51 PM »
Stirring the mash is not a good idea if you are looking for consistency. I introduces oxygen to your mash, which , i think makes the finished product unstable, loosing flavors prematurely.
I built a RIMS and get excellent results. I built a heat source using a piece of 1.5" copper pipe; a hot water heater element and a PID/relay from Omega engineering. Set and forget till its time to raise to your next rest, never overshoot your mash temp.
A good read can be found at theelectricbrewery.com. The author discusses building an electric HERMS, but you can modify to RIMS and has plenty of other ideas you might find helpful.