
1) Brewing term
Found on
https://www.crosswordclues.com/clue/coolship

A coolship (Anglicized version of the Dutch/Flemish koelschip) is a type of fermentation vessel used in the production of beer. Traditionally, a coolship is a broad, open-top, flat vessel in which wort cools. The high surface to mass ratio allows for more efficient cooling. Contemporary usage includes any open fermentor used in the production of b...
Found on
http://en.wikipedia.org/wiki/Coolship

Shallow tank for aeration, clarification and cooling of hot wort. Presently usually replaced by Whirlpool tank.
Found on
http://www.winning-homebrew.com/brewing-terms.html
No exact match found.