What exactly is a coolship at Tiantai brewery system?

If you are a fan of breweries such as Russian River, Allagash or Jester King, you may have heard mention of a brewing device called a coolship to be as beer fermenting tank. In fact, Allagash has an entire line of beers with “coolship” in its name. But what exactly is a coolship? What is it used for? And is it any different from a koelschip?

Coolship is the anglicized spelling of the original Flemish word "koelschip," but, ultimately, they are one and the same — a large, flat, open container that boiled wort is poured into to cool.
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Brew Lambic beer, Tiantai beer brewing system, brewery equipment, brewhouse, beer fermenter tank, brewery brew system, microbrewery machinery, beer brewing machine, beer making kit, craft beer brewing device

Wort, the sugary liquid that’s beer before it’s beer, is boiled during its production. Hops are also typically added during this stage. However, the wort is much too warm at this point to begin fermentation. To cool it most efficiently, it is passed through a heat exchanger (typically a plate exchanger, where the wort and cool water are passed alongside each other in separate pipes through a series of plates, where the heat is “exchanged” from the wort to the cooler water). Once the wort has sufficiently cooled, yeast is then added to begin fermentation. Very specific yeast strains are used depending on style to produce the desired flavors, textures, and aromas once fermentation has completed.

In brewing with coolships, the confluence of the local water used and all those local critters that jump into that big wort pool determines the unique characteristics of that brewery’s beer. Also, as with many wines, the final bottled product is the result of a blend of individual beers that have been aged in barrels for various lengths of time. (Specifically, to make a Gueuze, the final blend MUST be made of one-, two- and three-year old beers).
Brew Lambic beer, Tiantai beer brewing system, brewery equipment, brewhouse, beer fermenter tank, brewery brew system, microbrewery machinery, beer brewing machine, beer making kit, craft beer brewing device

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Edited By Daisy
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