Sun Jul 29, 2012 6:48 am
As mentioned in prior posts, just ice water alone is not going to be enough to cool down the entire wort to pitching temps, but using the chiller to flow wort through a cool water bath does work well ... better than the other way around. I use my 1/2" chiller and pump for my HERMS mash temp control (recirculate mash water through the coil sitting in hot water ~6 degrees above desired mash temp). Once mash is done, the ~170 degree sparge water runs through the same coil during the sparge which helps to rinse the coil out. At the last 20 minutes of the boil, I place the chiller in the kettle, hook up the hoses, and recirculate the wort through the coil during the boil (boil stalls for less than a minute) ... this ensures that the inside of the chiller is adequately heat sanitized. At the end of boil, the coil goes into a cool water bath to heat up cleaning water. The water will need to be replaced with fresh and cool hose water as needed (use of ice reduced the number of times the water needs replaced). During clean-up, use the hot water PBW solution to recirculate through the chiller coil to clean out any debris.
I have tried using the coil both ways and the wort through coil works faster than pumping the cool water through the coil. After a couple of years cooling this way and literally several hundreds of gallons brewed, I have had no problem with contamination.
Eagle Dude
On Tap: Barrel Fermented Berlinerweisse 3.2%; American Pale Ale 6.3%, Amarillo Blond 5%
Aging: Flander's Red in a 60 gallon Merlot barrel
Fermenting: Robust Porter 6.5%