I just cleaned most of my brewery with PBW left over night in a 1oz to 5 gallon ratio. After rinsing it all off as well as I could I noticed some white "stone" looking residue that comes off with a little elbow grease. Problem is that elbow grease doesn't work for things like hoses and more importantly my corny keg. Does anyone have any suggestions or concerns?
A watched pot does boil!