Koumiss
Dissolve a third of a yeast-cake in a gill of warm milk and add two teaspoonfuls of granulated sugar. Have ready scalded a beer bottle with a patent fastener. If you have not this, use an ordinary bottle with a straight cork, and soak the cork for half an hour to swell it. Fill the bottle three-quarters full of fresh milk, heated until just blood-warm, and pour in the yeast-mixture. Shake hard for two minutes, and cork tightly. If you use an ordinary cork, cord or wire it down. Set the bottle in the warm kitchen for six hours, or until the contents begin to “work” and foam. Then set in the ice-chest until needed. As one yeast-cake will make three bottles of koumiss it is quite as easy to make that quantity at once as it is to prepare one bottle of the stimulating and nourishing beverage.