Chapter XV
BREAD
The yeast plant. Yeast is a minute plant, and like other plants must have the right conditions of heat, moisture, and nourishment in order to live or to nourish. It will be killed if scalded, or if frozen, as any other plant would be; therefore, as we depend upon the growth of this little plant for raising our bread, we must give its requirements as much care as we do our geraniums or our roses. The yeast plant takes its nourishment from sugar. This is found in flour. It converts this sugar into carbonic acid gas and alcohol, and the pressure of this gas causes the mixture in which it is generated to become inflated, or to “rise.”
Making bread. In mixing bread, we put the yeast into warm (not hot) water; this we mix with flour, thus supplying the moisture and nourishment required. We put this mixture in a warm place to force the growth of the plant. When the dough has become sufficiently inflated we put it into the oven and raise the heat to a degree which kills the plant and fixes the air cells, and our bread is done.
Yeast. In cities, where fresh compressed yeast can be obtained, it is not worth while to prepare one’s own. Where this cannot be had, the dry yeast-cakes often give satisfactory results, but are not as reliable as a liquid yeast, which in the country it is often necessary as well as desirable to make.
DICK BENNET’S RECEIPT FOR YEAST
Peel nine good-sized potatoes, and boil them with a large handful of loose hops tied in a thin muslin bag. Use enough water to cover them well. When the potatoes are tender strain off the water. Mash the potatoes, return them to the water in which they were boiled, and mix them well together. Add two tablespoonfuls of flour, one half cupful of granulated sugar, and one tablespoonful of salt. Cook it for a few minutes, adding sufficient flour to make a thin batter. Set it aside until lukewarm; then add a yeast-cake, or a cupful of liquid yeast. Mix it well and place in a stone jar. Let it stand for twelve hours in a warm place. Stir it three times during this period. Place a weight on the lid of the jar, and set it in a cool place.