Originally Posted by marcb
With a decent reservoir and a jacketed or coiled fermenter they can be leveraged for cooling or maintaining fermentation temps in hot environments. I agree that $350 is a bargain depending on the manufacturer and options. Lowest I've seen decent used units go for is 5-600 with no warranty.
What percentage of propylene glycol to water ratio does anyone recommend in tapper lines and chillers? 20, 30, 40, or 50%