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Check out Jester King’s new coolship

January 13, 2016Chris Crowell

Jester King coolship
Behold!

The piece of equipment above looks simple, but it will be used to make some of the most complex beers in the country. That, friends, is the new Jester King coolship. Quickly for those still stumped. A coolship is a broad, open-top, flat vessel that allows for efficient cooling of the wort (because of the surface to mass ratio) while also allowing for wild fermentation to do its thing.

“We do not pitch our mixed culture of yeast and bacteria,” the Jester King noted when announcing the news. “For us, spontaneous fermentation is the ultimate partnership with nature when it comes to making beer inextricably tied to a particular time and place.”

This new coolship holds about 950 gallons of wort, is made of copper and has been permanently situated in one of the upstairs corners of its barrel room. Windows were installed nearby to allow cold night air to flow over the coolship and inoculate the wort with native yeast and bacteria from the land. A wood ceiling was built over the top of the coolship to aid in microbial momentum. As the wort cools, steam rises and seeps into the pores of the wood above. The steam then cools and drips back into the coolship, bringing with it microorganisms living in the wood. A microbial feedback loop of sorts is created, which aids the momentum of fermentation.

RELATED: The trial and error of a sour beer program, by Epic Brewing

“As we recently mentioned, we’ll blend and package our first 100 percent spontaneously fermented beer this winter,” says Founder Jeffrey Stuffings. “After several months of refermentation in the bottle, it will be released later this year. We began inoculating wort in our coolship back in February of 2013, so again, this winter is our fourth coolship season. Our coolship season is very short in central Texas, with sufficiently cold temperatures typically only present in January and February.

But what of the old coolship? Jester King will be holding on to it.

“We have some exciting plans for it this winter! The plans involve seeking out some interesting microflora for fermentation around the Texas Hill Country. We’ll have more on this later this winter. In the meantime, we’re excited to move forward into our fourth season with a new coolship!”

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Reader Interactions

Comments

  1. clevebeer says

    January 19, 2016 at 10:37 am

    @CraftBrewingBiz not a fermentation vessel. It’s for cooling wort prior 2 fermentation & inoculating prior 2 going 2 its ultimate fermenter

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  2. Rob Dave says

    January 14, 2016 at 10:36 pm

    Rob Dave liked this on Facebook.

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  3. SimianBeerCo says

    January 14, 2016 at 3:24 pm

    Pretty awesome. I am wanting to get into spontaneous fermenting myself. https://t.co/n7d6Kq6v4N

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  4. Brian Burke says

    January 14, 2016 at 10:21 am

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  5. Jesse Theisen says

    January 14, 2016 at 10:21 am

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  6. Roman Stelmazuk says

    January 14, 2016 at 10:21 am

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    January 14, 2016 at 10:21 am

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  8. Ben Wright says

    January 14, 2016 at 2:06 am

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    January 14, 2016 at 2:06 am

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  10. Mike Maxwell says

    January 14, 2016 at 2:06 am

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  11. Bobby Bump says

    January 13, 2016 at 9:52 pm

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  12. Laura Bruns says

    January 13, 2016 at 7:51 pm

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  13. Serge Lubomudrov says

    January 13, 2016 at 7:51 pm

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  14. Scott Davidson says

    January 13, 2016 at 7:51 pm

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  15. LVRGLLC says

    January 13, 2016 at 7:22 pm

    #CraftBeer #CraftBrewing #Beer #BeerBiz Check out Jester King’s new coolship https://t.co/WHa7pekVkr

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  16. Scott Miller says

    January 13, 2016 at 6:51 pm

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    January 13, 2016 at 5:21 pm

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