I put a pond pump in a cooler with a few pounds of ice. When I get the temp down to 100 with my garden hose I take it off the hose and hook it to the pond pump and circulate the ice water through it.
My method has been to use the immersion chiller till it gets to the point where it won’t go any lower usually around 80. Then put the kettle in a cooler of ice water and stir. My new kettle doesn’t fit in the cooler so I have been using the chiller, transfer to the fermentor and then put the fermentor in the ice bath.
I’ve been thinking of going the pond pump route, then I could also put a valve on the kettle. In the winter the IC does fine by itself.
Having gone this route myself and seeing that it was painfully slow, I bought another 25-footer and tossed it into a bucket of tap water as a pre-chiller to supplement the one in the kettle. Minimal returns.
So, I made a new 50-footer, and I combined the two original 25-footers into one 50’ pre-chiller and ran that water through my newly made 50’ 3/8" copper IC in the kettle. I start with tap water (about 80 F in the summer here) add ice at about the 120 F point, and get 6 gallons down to 65 F in around 12 minutes consistently.
More surface area on the IC in the wort = faster cooling; all else being equal. 50’ is better than 25’, 1/2" is better than 3/8", etc.
I’m loving this thread… at the end of the day, as fun as brewing is, I really just want to put the effort (and myself) to bed. Great ideas here. Philm63, I’m particularly liking the pre-chiller you’ve put together as I’d prefer to stay pumpless.
If your sanitation practices are stringent there is no reason to stress about leaving the beer up to 12 hours in your ferm chamber to reach proper pitching levels before pitching. There are even commercial breweries out there which do this. Lots of em.
Could always try no-chill. The Aussies love it. I have thought about it but never pulled the trigger.
Jeffy, try whirlpooling the wort prior to cooling and draw the wort from the side of the kettle. If there is a lot of trub and you have a small kettle, you’ll get about 10% of the trub drawn into the fermenter. I cured this by whirl pooling into another kettle, which was whirl pooling a second time. When drawn off the second kettle, the wort is perfectly clear.
I had to do this because trub and hops were getting into my reverse flow chiller. It would get stuck and later mildue and contaminate the next batch of beer.
Good luck,
I have a pull down sprayer kitchen faucet, so I use a small pond pump in a small cooler. I fill the cooler with tap water and pump it through the my 1/2" x 50’ double coil IC. Once I hit between 90-100F, I pump most of the water out of the cooler, fill it with ice and recirculate the cooling water. I also gently stir my wort to keep it moving over the coil of the IC. I typically drop about 10-13F/min with the tap water. Then it slows down with the ice water. I monitor the temp of the recirculating ice bath water and the wort temp. When the are within in about 5-10F of each other and the ice is all gone, I pump out most of the water and fill it back up with ice. I’ve gotten lagers down to 45F like this.
Lagers take about 45-60 minutes and ales (~60F) take about 30-40 minutes. I’ve got city water, so right now it is about 70F but in the winter it is about 45F. Winter cooling is very quick. I think I was doing nearly 20F/min with this past winters super cool water temps.
I’m thinking about getting a slighter higher volume pond pump. The temp of the water coming out of the chiller is about 5 degrees below the wort’s. A little more flow rate should increase the difference and increase cooling along the last bit of length of the coil. Then I’ll use the older pump to stir the ice bath water to help with cooling.
waste ice or waste water take your pick. 10 pounds of ice can absorb more heat than a gallon of 70 degree water. that said, i throw my kettle in the fridge over night decant the wort off the cold break in the morning then pitch
Now to convince my clients and wife…
I hate my immersion chiller too! >:(
Last night, I experienced this same issue. So … taking the advice of more experienced homebrewers on this forum, I waited until this morning to pitch. I think if you practice good sanitation, and seal your bucket or carboy, this should never be an issue.