Craft A Brew Clover Wort Immersion Chiller - Copper Coil, Vinyl Tubing, Hose Adapter - 5 Gallon Review (2026)

Who this chiller is for

The Clover Wort Immersion Chiller is built for homebrewers doing five gallon batches who want to cool hot wort quickly after the boil rather than waiting on an ice bath or letting it cool overnight. Fast cooling matters for two reasons: it reduces the window where bacteria can infect the wort, and it produces a cold break, where proteins clump and drop out, which leads to clearer finished beer. Because the coil is pre-assembled and comes with tubing and a hose adapter already attached, it suits brewers who want to submerge, connect a hose and go rather than assembling loose parts on brew day.

Build and what is included

The chiller centers on a coil of roughly 12.5 feet of copper tubing, chosen because copper conducts heat efficiently and pulls temperature out of hot wort fast. It ships with two vinyl tubing leads and a hose adapter that lets it connect to a standard faucet or garden hose, along with stainless steel worm clamps to secure the connections, and the whole unit is made in the USA. Because it arrives pre-assembled, there is no coiling or soldering required before first use, and the coil can be dropped into the last few minutes of a boil to both cool the wort and sanitize the copper in the same step.

Using it on brew day

The chiller drops into the boiling wort during the final minutes of the boil, which sanitizes the copper before water starts flowing through it. Once the boil ends, cold water runs in one vinyl lead, through the coil, and out the other, pulling heat out of the wort until it reaches yeast pitching temperature, typically in well under an hour depending on ground water temperature and how much the brewer stirs the wort during chilling. Afterward, copper needs a rinse and periodic cleaning with a copper cleaner or diluted acid solution to keep it from oxidizing and turning dull, since a dirty or tarnished coil is harder to sanitize between brews and can eventually affect the wort.

Trade-offs and how it compares

Against stainless steel immersion chillers like the Coldbreak Knockout, copper chills somewhat faster for a given coil length because copper conducts heat better than steel, but stainless resists oxidation and does not need the same polishing routine, and it will not react with acidic wort the way copper occasionally can. Compared with the Home Brew Stuff WC-25, another 5 gallon copper chiller in the same lineup, the Clover's main advantage is arriving fully pre-assembled with tubing already attached, while some copper competitors ship as bare coils. The vinyl tubing leads on any of these copper chillers can soften if they rest against the hot kettle wall, so routing them away from direct contact with the kettle matters regardless of which brand is used.

Verdict and who should choose differently

At our score of 8.4 out of 10, the Clover chiller is a solid, ready to use pick for five gallon brewers who want fast copper cooling without assembling parts themselves. It suits brewers who already have hose access near their brew space and do not mind the extra copper cleaning that comes with the metal. Brewers who want to avoid metal polishing entirely, or who brew acidic styles like fruited sours where copper contact is a bigger concern, should look at a stainless option such as the Coldbreak Knockout instead, and anyone chilling batches larger than five gallons should look at a longer coil or a counterflow chiller for faster results.

Frequently asked questions