A very complete book on baking soda on a modest ingredient cheap, environmentally friendly and efficient. It is useful everywhere, as shown in the book, from basement to attic, balcony and terrace, for pet, groom and their health, and their toys, cooking, beauty care and hygiene , etc. It begins with the story of this modest ingredient, the reasons for its use, actions, how to use, storage, dosage, production, etc. Exit odors of all kinds, and up to the cleanliness and sparkle everywhere. However, some restrictions Warning: do not use on delicate fabrics like wool and silk (though I have read that it can be used for woolens, if in doubt, do a small test before), and internal use, beware hypertension because it contains sodium, which can raise blood pressure, and rinse well after use because it can leave white marks. As for rinsing vegetables, rinse well after as it may leave a slightly salty taste. But, it was not negative sides this sacred white powder? This is my rational side which raises the question, and no books read so far provided information on tests that were done after the use of bicarbonate. Is it so effective is said? The jobs that I have made are obvious: it removes odors from the fridge, he scours a forgotten pot on the fire in a few minutes, the black hand in thick layers, and the pan regains its bright immediately after the machine smells clean after washing, and is soft, etc. The plus of the book was to give proof of its efficiency, and its potency, and eliminate the recipes, because the powder can be substituted for baking any recipe by baking without changing the results. Except for tomato sauce, and some other details, such as reducing the cooking time of legumes, and reducing the acidity of the tomato sauce, not just the acidic taste. But the book is very comprehensive and the information easily spotted thanks to a well organized index. A pleasant and useful reading.