from The Century Dictionary.
- noun In brewing and distilling, a contrivance for regulating the temperature of the wort during the progress of fermentation.
Sorry, no etymologies found.
Each cask is fitted with an attemperator, a pipe and cock at the base for the removal of the finished beer and "bottoms," and lastly with a swan neck fitting through a bung-hole and commanding a common gutter.
A, Skimmer; B, Parachute; C, Attemperator.] (A) In (a) the _Skimming System_ the fermentation from start to finish takes place in wooden vessels (termed "squares" or "rounds"), fitted with an attemperator and a parachute or other similar skimming device for removing or "skimming" the yeast at the end of the fermentation (fig. 4).