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==Homebrew Coolships==
[[File:Ky coolship 2.jpg|thumbnail|right|"mini-coolship" by Devin Bell]]
Many homebrewers will construct a "mini-coolship", as seen by Devin Bell's picture. Devin has reported good results from using his makeshift ''coolship''. The benefit of building one is that a ball valve can be installed near the bottom of the coolship, which will make transferring the wort easier. Another option that some people have reported trying is purchasing a large stainless steel pans from a restaurant supply store.
The third, and recommended option is to use your boil kettle. At the 2015 National Homebrewer's Conference in San Diego, James Howat's presentation, ''Wild and Spontaneous Fermentation at Home'', showed that the surface area of smaller coolships is actually extremely more than large ''coolships'' used in production breweries <ref name="Howat">[http://www.homebrewersassociation.org/how-to-brew/resources/conference-seminars/ ''Wild and Spontaneous Fermentation at Home''. Presentation by James Howat at 2015 NHC.]</ref>.
::Surface Area to Volume ratio = 6.25/1.25 = '''5''' square feet of top surface area per cubic foot of wort <ref name="Howat"></ref>.
Surface area effects both the microbe collection and the cooling rate. Using a boil kettle, while it may still not be as close to the 0.67 sq ft/cu ft ratio as a production brewery coolship, will be closer than a "mini-coolship". James Howat also recommends perhaps trying to insulate the boil kettle so that the rate of cooling is not too fast <ref name="Howat"></ref>. For more information on the process of brewing with a coolship, see [[Spontaneous Fermentation]].
==See Also==