Pasteur Brewing Louis Pasteur – Science, Health, and Brewing Turn five quarts of water on six ounces of hops; boil three hours. Strain off the liquor; turn on four quarts more of water, and twelve spoonfuls of ginger, and boil the hops three hours longer. Strain and mix it with the other liquor, and stir in two quarts of molasses. Brown, very dry, one-half pound of bread and put in, rusked bread is best. Pound it fine, and brown it in a pot, like coffee. After cooling to be about lukewarm, add one pint of new yeas that is free from salt. Keep the beer covered, in a temperate situation, till fermentation has ceased, which is known by the settling of the froth; then turn it into a keg or bottle, and keep it in a cool place.
