It is difficult to determine whether coffee may be classed as a food, but that it has value as an adjunct to true nutrients there can be no doubt. There is a general agreement among physiologists that coffee is invigorating, that it aids digestion both in the sick and the well, that it is capable of allaying or retarding waste and thereby acting indirectly as a food. But the mistake should not be made that coffee will replace food. Coffee may be compared in its effects on the system to beef-tea—it is valuable for its flavors rather than for actual nutritious principles.
It is a curious fact that coffee is most frequently made in such a way that its valuable flavors are undeveloped or destroyed. Care must be taken that the roasting be not carried so far as to char the coffee-beans, yet far enough to convert the sugar into caramel, and to change the nature of the volatile oil, so that the highest point of flavor will be reached. This can be best accomplished in regular roasting-houses, where the temperature and time may be accurately measured.
It is best to get a supply of fresh roasted coffee every day, but when this is not practicable, once in three days, or once a week, will do. Although theoretically the roasting of coffee should be a part of its preparation—that is, it should be roasted, immediately ground, and made into drink—practically it is very seldom done.
COFFEE. No. 1
A favorite mixed coffee is made with two thirds Java and one third Mocha. It should be ground just before it is needed. For a pot of coffee use the proportions of one heaped tablespoon to a cup of water. It is well to calculate the number of persons there are to be served, and allow one cup (one half pint) for each; this amount, with the milk or cream used, will make two ordinary china cups of coffee. To the ground coffee add a little yolk or white of egg, with a spoonful of water to dilute it; mix thoroughly until all the grains are coated over with albumen, then pour on the boiling water, simmer for five minutes, and steep at a temperature just short of simmering for ten minutes more. The coffee is then done. It should be served at once with loaf-sugar, and either hot or cold cream, or hot milk. The coffee should be perfectly clear and of fine color and flavor.
There are many methods of making coffee, but the above, everything considered, seems the most desirable for family use. One egg is enough to clear three quarts of coffee, and both yolk and white are of equal value for the purpose.
COFFEE. No. 2
For every cup of water use a heaped tablespoon of coffee; soak the coffee overnight or for several hours in cold water, then bring it to the boiling-point, and let it simmer for a few minutes just before using. This is said to be the most economical method of making, as more is obtained from the coffee by this treatment. The flavor is certainly fine.
Long boiling dissipates the delicious aromatic oils, and as probably these are the most valuable properties of the coffee, the necessity of preserving them is easily seen. Care should be taken not to boil coffee for more than from three to five minutes, and simmer rather than boil, so as to preserve as much as possible the fine flavors which are so quickly dissipated by boiling; yet the high temperature seems to be necessary to extract the desirable properties of the bean. One must therefore ever bear in mind the seeming paradox that coffee should reach the boiling-point, and yet not boil.
We do not estimate highly enough the value of flavors. It is a well-demonstrated fact among a few persons that many dishes containing actual nutritious principles are but partially or imperfectly digested, because of their lack of good flavor, either from want of proper preparation, lack of seasoning, or poor cooking. There is no doubt that many people suffer from indigestion after eating such food.