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added metric to inoculation rate, softened wording of unref-ed statement
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This example indicates a substantially lower ratio for the 36 BBL coolship. At the lower ratio, the wort will cool considerably slower. As a result difference in cooling rate between the two coolships, the inoculation rate and ratio between microorganisms will may differ.
Designing a coolship for homebrew volumes may result in a coolship that does not appear similar to its larger companions. To get as close to the 1.73 ratio of the 36 BBL coolship with our 10 gallon example, the dimensions would have to be as close to a cube as possible with dimensions approximately 1.1' x 1.1' x 1.03'. This still only gives a SA:V of 4.9 sq. ft. per cubic foot. A homebrewer desiring a more shallow vessel may insulate the coolship to slow the cooling rate although this may affect the inoculate rate. A typical homebrew-volume boil kettle is closer to the larger coolship (estimated 1-2 sq. ft. per cubic foot) and insulating the kettle when using it as a coolship may slow the cooling rate closer to that of a commercial-volume coolship.
::Wort volume = 1122 gallons = 150 cubic feet.
::Surface area of the top surface of the wort (w x l) = 100 sq. ft.
::Surface Area to Volume ratio = 100/150 = '''0.67''' sq. ft. per cubic foot(22.0 cm<sup>2</sup> per L)
:Example of a 10 gallon coolship:
::Wort volume: 9.35 gallons = 1.25 cubic feet.
::Surface area of the top surface of the wort (w x l) = 6.25 sq. ft.
::Surface Area to Volume ratio = 6.25/1.25 = '''5''' sq. ft. per cubic foot(164 cm<sup>2</sup> per L)
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