It's kind of a catch 22. If you use abrasive scrubbing to remove it, you put deeper scratches into the stainless which provides a better foothold for the beer stone in the future. I think I might experiment a bit by putting a high polish on a smaller 3" circle on the bottom of the kettle just to see if it cleans up easier. I've had luck with an overnight soak in double strength starsan.
Sightglass, Refractometer, Ball Valve, Weldless bulkhead, Thermometer, Decals, Stainless Steel Fittings, Compression Fittings, Camlock Quick Disconnects, Scale, RIMS tube, Plate Chiller, Chugger Pump, Super Clear Silicone Tubing, and more!New Stuff?