Food study

Great caution must be taken when molasses is used to act as the acid with soda. Modern molasses is entirely different in respect to its acidity, being always much less acid than of old. It is safer to allow not more than a quarter of a teaspoon of soda to a cup of molasses, if the molasses is bought in bulk. Use baking powder for the rest of the leavening. If the molasses is canned, it may have practically no acidity whatever, and baking powder should be used instead of any soda. 1. How does baking soda differ from washing soda? 2. What finally becomes of the carbon dioxide gas from the soda used in griddle-cakes ? 3. Is carbon dioxide harmful ? 4. What is soda water? How is it made? 5. Wherein lies the chief danger of drinking soda water at a public store if it is managed carelessly ? Are there any laws in your town or city governing this ? 6. Why is soda soothing to a burn ? When should it not be used for this purpose ? XLVII LEAVENING SWEET MILK GRIDDLECAKES SPONGE CAKE A. Class Experiment. BAKING POWDER. 1. Mix a little soda and cream of tartar. Does anything happen? Add water. What test with litmus paper was given by cream of tartar and water ? 2. Pour a tablespoon of water on half a teaspoon of baking powder. Is gas given off? From this experiment what two substances do you suppose that baking powder contains? 3. Boil (2). When cool, add iodine. What third substance does this show is present? 1 4. Why starch is used. Stir together half a teaspoon of starch and half a teaspoon of water. What becomes of the water ? What happens if the soda and acid in baking powder becomes moist ? Why is starch added ? 5. Weigh out one ounce of soda and two and a quarter ounces of cream of tartar. Add half an ounce of starch. Mix thoroughly and sift. Compare the cost of this with the cost of an GRIDDLECAKES — SPONGE CAKE equal weight of purchased cream of tartar baking powder. B. PREPAKE SWEET MILK GRIDDLECAKES Use one-fourth of the following proportions : (milk) EGG FAT BAKING POWDER 1 C. ? 1 tbsp. 1 tsp. ? The usual amount of baking powder is two teaspoons to a cup of flour. How does the amount of soda used in the sour milk griddlecake recipe compare with the amount of baking powder used here ? C. PREPARE SPONGE CAKE. Use one-sixth of the following recipe. oven at 338° F. Bake in an *Yolks 6 eggs 1 c. sugar 1 tbsp. lemon juice tsp. salt Grated rind one-half lemon *Whites 6 eggs 1 c. flour (pastry) Beat yolks until thick and lemon-colored, add sugar gradually, and continue beating, using Dover egg-beater. Add lemon juice, rind, and whites of eggs beaten until stiff and dry. When whites are partially mixed with yolks, remove beater, and carefully cut and fold in flour mixed and sifted with salt. Bake one hour in a slow oven, in an angel-cake pan or deep narrow pan. From the " Boston Cooking-School Cook Book." By * The eggs in this recipe may be reduced to four with good results. BAKING POWDERS