A type of still used in the past.

A still was the primary tool of anyone making alcohol. It consisted of several parts. First, there was a copper cauldron (so that it did not rust), to which a coil was connected to collect the vapor. A little further on the coil was surrounded by a container of very cold water, which had the effect of liquefying the vapor into alcohol which flowed out of the coil at the other end of the cold water jacket and into a sandstone container. The copper cauldron was fitted with a safety valve that allowed the steam to escape if the coil failed to function properly.