Today in 1889, US Patent 399200 A was issued, an invention of Charles V. Koehler, for his “Apparatus For the Pasteurization of Beer.” There’s no Abstract, but the description states that the “invented a new and useful Improvement in Apparatus for the Pasteurization of Beer, of which the following is a specification.”

My invention relates to improvements in the mode of introducing steam into the steaming-vats, in which the bottles tilled with beer from the brewery are placed and covered with cold water, and then subjected to heat by introducing steam into the vat containing the bottled beer and water and heating the contents to a sufficient degree to destroy the yeast molecules in the beer contained in the bottles and arrest fermentation, thus bringing about that condition of the beer called pasteurization; and the object of my invention is, first, to provide a continuous distribution of the heat throughout the water from the top downward, thus saving breakage; second, to afford facilities for obtaining an equalization of the heat of the water and bottled contents of the vat; third, to reduce the amount of the surface of steam-pipe heretofore used and dispense with the holes or perforations therein; fourth, to insure the direct contact of every part-0t the water in the vat to the steam-supply.