Perfect motor for stirring mash

My neighbor has a motor that came out of an ice flaker machine. This thing has serious gear reduction and good torque. I measured the rpms and now I'm wondering if it is too slow; 12 rpms. Anyone think that's too slow to be useful in a keggle that I use as a mashtun? He has a second motor that I haven't checked yet but if it works I might be able to get him to sell it if anyone is interested.

12 RPM sounds like it would be a nice gentle stir. Not too turbulent but nice and smooth. I'd say give it a go.

12 rpm's is still more stirring than not having anything. It's slow enough to not get things too agitated. I guess your blade design for your stirrer will come more into play with a slow motor like that.