Today in 1891, US Patent 447131 A was issued, an invention of John Griffiths, for his “Process of Making Malt Liquor.” There’s no Abstract, but the description very generally states that the “invention relates to an improvement in the art of making malt liquors by which the quality of the liquor is improved,the cost of production reduced, a considerable saving effected in the time and appliances heretofore required, and a consequent gain realized in the capacity of a brewery.”