Baking soda

Definition and stakes

Carlotta C. Greer,  School and Home Cooking

“ From the results of Experiment 69 we know that an increased quantity of baking soda will not produce satisfactory results. Hence more carbon dioxide gas must be obtained by other means. Since baking powder consists of both baking soda and an "acid" material, it makes a desirable substance for additional leavening. A combination of baking soda, sour milk, and baking powder is therefore used for leavening some quick bread mixtures, especially those that contain only a small quantity of sour milk and no eggs. ”
Source: Gutenberg

Martha Lee Anderson,  Successful Baking for Flavor and Texture…

“ Baking soda! Yes, grandmother used it in her prized recipes and the modern homemaker finds it making her baking day a success.
Arm & Hammer Brand and Cow Brand Baking Soda are refined bicarbonate of soda whose standard of purity is that set up by the United States Pharmacopoeia. For over 90 years this mild, healthful, alkaline substance has been creating baking history. All these years homemakers have depended on baking soda to make their baked products deliciously moist and delicately light and tender.
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Source: Gutenberg

Martha Lee Anderson,  Successful Baking for Flavor and Texture…

“ As this gas expands during the baking, the product becomes light and tender. Thus it is that baking soda uses nature’s own unrivaled acids to leaven and lighten baked products.
5 Success Assured
Leavening nature’s way is surprisingly easy. The acid content of citrus fruit juices or vinegar may be used to develop the unsurpassed flavor and texture associated with baking soda products. The following amounts,
11⁄3 tablespoons vinegar (4 teaspoons)
11⁄2 tablespoons lemon juice (41⁄2 teaspoons)
3⁄4 cup orange juice (12 tablespoons)
may be used with 1⁄2 teaspoon baking soda.
”
Source: Gutenberg

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