This section is from the book "Every-Day Dishes And Every-Day Work", by E. E. Kellogg. Also available from Amazon: Larousse Gastronomique.
It is now generally recognized by physicians that tea and coffee are unwholesome beverages. Each contains a harmful substance known as caffein or thein, of which seven and one-half grains will kill a small animal. Many nervous disorders, the origin of which is not suspected, are due to the use of tea and coffee. Physicians now recognize the "tea-drinkers' disorder" as the result of the use of these beverages. Both tea and coffee prevent the digestion of starch, and give rise to various forms of indigestion. Caramel-cereal supplies a harmless and wholesome substitute for tea and coffee. It was originated at the Battle Creek (Mich.) Sanitarium, where it has long been in use, as well as in thousands of families throughout the United States.
For each cup of the beverage required, use a dessert-spoonful of the caramel-cereal, and steep for from ten to twenty minutes. Excellent coffee may be made in five minutes, or even less; but the strength and flavor are developed by longer steeping.
 
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