anyone have a way to cool glycol and pump it through a stainless coil either on the inside or a copper coil on the outside of a fermenter?
My neighbor and I built our 30 gallon water chiller.
He designed and built the most important part, the evaporator coil, I did the easy stuff.
The cooling unit is a Copland commercial unit.
The fermenters have internal SS cooling coils, temp controllers and water valves.