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From these documents: PDF1 PDF2 Store in cool conditions, away from direct sunlight Keep containers sealed when not in use Maximum storage temperature - 30°C Recommended storage temperature - 10 to 15°C Minimum storage temperature - Not applicable The shelf life at the recommended storage temperature is 2 years from date of manufacture Increasing the ...


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PBW was originally designed to clean a copper "waterfall" chiller device at Coors. It is more safe than caustics and other harsher chemicals both for the copper and you. Also I believe starsan denatures at 80° or 85°C.


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Based on what John Palmer says about cleaning copper with various acids, I wouldn't use copper in the acidic environment of fermenting beer. If you can get your hands on a stainless coil though, the idea will work. SS Brewtech has a Fermentation Temp Stabilization System along these lines.


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First this: How to Brew: Brewing Metallurgy Apparently, there should be no problem in using a copper chiller in your fermenting beer. Make sure there is no oxidation before you use your cooler.


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I use PBW and it is a good 'soak' cleaning agent. However I find when using hard water it can slowly form a 'film' on the surface of things that are repeatedly cleaned by only soaking and rinsing. Any film formed is usually easy to clean off by scrubbing in hot water and re-rinsing. It might be worth checking for any build up in pipes or difficult to reach ...


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Rather than circulate a coolant, you could also mount the peltier on top of a long heatsink (SS304) that extends into the beer. Use a H-bridge to change the direction of the peltier so you can switch it from heating or cooling.


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Make a paste with Bar Keepers friend and rub it all over the surface of the chiller wait 15 to 20 mins then rinse. It is cheap and the oxilac acid cleans the copper very well.


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