HOME MADE YEAST.
Wash, pare, and soak one large potato. Steep one tablespoonful of hops (loose) in one pint of boiling water; mix one heaping tablespoonful of flour, one teaspoonful of sugar, one teaspoonful of salt, one teaspoonful of ginger; grate the potato into the flour mixture; let the hot water boil briskly for one minute, strain it over the flour and potato mixture, and mix thoroughly; if it does not thicken like starch, place it over the fire for a few minutes, stirring briskly. If too thick, add boiling water till thin as cream. When lukewarm or at 70 degrees, add one half cake of yeast. Raise in a warm place till frothy, beat it down every half hour. Bottle and keep in a cool place.