I'm looking at building a jockey box with a 70', 5/16" (21.3m, 8mm) stainless steel coil (installed in a drum-style cooler.) Seems to be a good compromise between size, weight and cost.

How quickly can I pull cold beer out of it without it foaming?

My back-of-envelope calculation says a 2133.6cm by 0.8cm coil holds &pi; &times; 0.4<sup>2</sup> &times; 2133.6 = 1072<sup>3</sup> or just over a litre of beer. The [Mythbusters say][1] you can cool a six pack of beer in five minutes with salted ice water, so I'd interpolate that one beer per minute would be achievable.

Can anyone confirm my theory with experimental evidence?


  [1]: http://kwc.org/mythbusters/2005/03/mythbusters_cooling_a_sixpack.html