« on: June 25, 2012, 12:16:17 AM »
I also cool 12 gal batches in 15 min. using a 2 stage method. The wort is first run through 18- 1/4'' x 24'' SS tubes which are mounted inside a 4'' diameter SS pipe with sanitary fittings on each end. The tubes are cooled with hose water. ( it's just a gravity fed modified IC mounted in a 2 ft. x 4 in. pipe)
Then the wort is pumped to the Hot TL which I converted into a Cold LT ice bath using as much ice as I can get. I pump the hot wort through the 1/2''- 50' copper submerged in ice water and then directly into the conical. It's a cool 60*-65*, one shot, one way, no return.
I've tried it the other way and I wasn't satisfied.....pumping ice water through hot wort is not as effective as pumping hot wort through ice water. Also a small fountain pump to whirlpool the ice water really helps eliminate any warm spots.