The first stage in homebrewing is making the wort and using a wort chiller to bring your wort down to yeast pitching temperature quickly is done for many reasons. Some of the reasons you want to chill your wort as quickly as possible is to minimize the amount of time your wort is exposed to possible contaminants, and also to reduce the chances of having off flavours in your homebrew due to dimethyl sulfide. You can also avoid what is called 'chill haze', which is caused by the proteins being allowed to re-dissolve due to the fact they were not 'shocked' out of the wort.
So how does an immersion wort chiller work? Cold water goes into one end of the chiller coil, and as it circulates through the coil, it cools the wort. The warm water exits through the other end of the coil and may be used later for cleaning. Both stainless steel and copper immersion wort chillers work well for quickly reducing the temperature of your wort, and deciding which one works best is a personal preference. Stainless steel chillers will last you a very long time, look good and are easier to clean. Copper chillers may work slightly faster, however, the finish tends to oxidize, they are more pliable (so if not handled properly they could kink) and the cost may fluctuate depending on the market.
Are you interested in how a plate chiller works? The cold water flows through the plates in one direction while the wort travels in the opposite direction and then directly into your fermenter.
For those of you that want to make an immersion wort chiller, HERMS or jockey box, we do offer both stainless steel and copper coils in various lengths and diameters. We do like to remind brewers that making wort chillers, HERMS or jockey box coils is for the mechanically inclined, and all non-fabricated coils are a final sale.
*NEW* Mash King Counterflow Wort Chillers! Hand-made in Canada!
If you want more information on wort chillers - read my blog titled Wort Chiller Coils
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