Kurt’s Fermentation Temperature Control System

Kurt’s Fermentation Temperature Control System

Recently a Winemaker’s Academy member shared this amazing system, that he developed, for controlling the temperature of a wine fermentation. In this post Kurt shares all of the equipment necessary to build this system. I (Matt Williams) have done some minor editing to convert it from an email to an article but by in large this entire article is in Kurt’s words. Please feel free to ask any questions that you may have in the comments below. Also if you decide to build this system for yourself please share your results in the comments. The original email included links to equipment available on ebay, however, given the frequency at which items turn over on that site maintaining those links proved to be too difficult. So you’ll have to do some hunting for these components but they should be easy enough to find given the amount of information Kurt has provided. And now for Kurt’s Temperature Control System: I have been using this system over a year now and have found it to be exceptionally effective in controlling the temperature. I tried a brew belt, but found it impossible to reliably control the temperature (probably because I was using it in an extremely cold winter [for us in England] in an unheated building, and then in a building that was unheated overnight in winter). Of course this only works if the ambient temperature is less than 25° C (77° F), which is not a problem for us in England almost every day of the year (or century). I remember reading in C.J.J. Berry’s book, First Steps in Winemaking, that the yeast likes a very stable temperature. With this system, there is still a small fluctuation in temperature, because the fermenter is not completely submersed, but it is typically very small, within a degree or so. (I have my tubs in a building that is not heated overnight, so there is often a very considerable drop in ambient temperature overnight in the winter, so I have given it a very good test.) Here is a description of the components and comments about the various equipment and prices. I have only included them to complete the list of potential equipment. Many of these items are not strictly necessary, but are nice to have. See the discussion for each item. Aquarium Fish Tank 2 Way Air Flow Distributor Splitter Control Lever Pump Valve These are simply more sophisticated versions of a cheaper plastic T valve. Often individual air-stones have different air resistance, so these allow you to easily adjust the air pressure for each stone, so that they produce an even amount of bubbles on each side of the tub. I only use these. PVC Tube Clear Flexible Plastic Hose Pipe – Fish, Pond, Car, Aquariums, Air Line I ordered a 10cm sample size (cut it to 2.5cm length) and found that it fitted perfectly around the thermometer to then fit in the airlock grommet with an airtight seal. Silverline Flat Bit 13mm 128573 Hand Tools Drill Power Holes Wood Drilling Brace Essential for drilling gromet holes in the lids of 23L fermentation buckets....

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