The beer to coolant ratio should be no less, but preferable more than two of coolant to one of beer. Equal coolant and beer flow pressures should be maintained. The coolant pressure should be below 30 p.s.i. Can be cleaned in place. Mild steel with white powder coated enamel.
Table below is for tap water both sides.
If chilled water or glycol is used on the second stage, the number of gallons cooled per hour is doubled.