FoodNet

Domestic science, principles and application

1914

Page 8

Presented as published in 1914. Historical recipes may not meet modern food-safety standards. Cook from the modern interpretation, not the original instructions.
(a) Water is the most important cleansing agent, for it dissolves more substances than any other liquid. Water is hard or soft. The hardness depends upon the amount of calcium (lime) or other salts it contains. Soft water is best for cleansing, since neither soap nor dirt dis- solves readily in hard water. To soften water, certain softening agents are added, such as borax, sal soda, ammonia, potash or lye. Temporary hard water can be softened by boiling. (b) Cleaning powders are of two kinds, — those that are mechanical and those that are chemical in their action. The mechanical powders contain minerals that assist in cleaning by producing friction. Among these are : — (1) White sand, for scouring iron and wood. (2) Bath brick, for scouring steel knives. (3) Rotten stone, for copper, brass, and tin. (4) Whiting, for silver, aluminum, and brass. (5) Commercial preparations on the market, which are very good for cleaning and come in very convenient form ready for use. The chemical cleaning agents are chiefly alkalies, which are most important in the removal of grease. Any alkali unites with grease to form a compound soluble in water, like soap. The chemical substances used for cleaning are : — (1) Sal soda, which is very strong, but is best for general use. It is cheap and is the basis of most washing powders, which cost many times their value. To use sal INSTRUCTIONS TO HOUSEKEEPERS 7 soda, dissolve one pound in a quart of water over the fire; then cook, bottle, and label. Use a little when needed. (2) Ammonia, which is not as strong as sal soda, and is used chiefly in laundry work, but is very good for general cleaning. (3) Kerosene. This is useful for cleaning polished woods, which alkalies would injure, and may be used in many other ways. (c) ioap is a combination of an alkali (soda or potash) with a fat. Describe the old-fashioned way of making soap. There are hard and soft soaps: hard soap is made with soda. The harder the fat used, the harder the soap. Soft soap is made with potash instead of soda. Action of Soap. — When used with water, soap dissolves and unites with any grease it touches, and loosens and washes away the dust and dirt. CARE OF EQUIPMENT Care of Dishcloths and Towels. — Have two enamel- covered pails in which to soak the towels. Use enough warm water to cover them well, and add two tablespoons of cleansall or soap solution. Cover, and let stand over night. To Wash Towels. — Use warm water, good soap, and a wash board. Rub each towel well until all the stains are removed. Put the towels in clean, hot suds on the stove to scald; bring slowly to a boil and boil 10 minutes; remove from the fire, rinse the towels in plenty of clean water wring well, shake out, and hang evenly on the rack to dry Place in the sun and air, if possible. To Remove Stains. — Iron rust is easily removed by dipping the spot into a solution of oxalic acid and then rinsing at once with clear water. Dissolve one teaspoon of 8 DOMESTIC SCIENCE oxalic crystals in }/8 cup of boiling water for the acid solu- tion. Apply lemon juice and salt to the spot in the direct rays of the sun until rust disappears. This takes longer.