Some people claim that ice cream tastes best just made, so
Alton Brown went down to try it at Three f(x) Ice Cream & Waffles in Jacksonville, Florida, where they make ice cream to order. They have a machine that stays at -30°F (-34.4°C) and cools the mixture in seconds.
As reader Tsalonich points out, this machine looks like a newer version of the PolyScience’s Anti-Griddle. Check out their promotional video to see how it works: