Chefman RJ39-V2-A Sous Vide Immersion Circulator w/Accurate Temperature, Programmable Digital Touch Screen Display and Intuitive Controls, 1000 Watts, Black
Possible brewing uses could include: getting and keeping strike water at temp, direct use (with a filter bag in a mash tun or BIAB mash), maintaining temperature for sour mashes and getting to a boil more quickly (or helping to maintain a boil) for both all grain and extract batches. Contact the manufacturer with questions about suitability for your application.
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