GENERAL OPERATIONS OF COOKERY.
Few of the substances which we use for food are consumed in the state in which they are originally produced by nature. With the exception of some fruits and salads, all of them undergo some preparation. In most cases, indeed, this is indispensable; for, otherwise, they would not only be less wholesome and nutritive, but less digestible. The preceding observations, therefore, are only applicable to the materials when cooked, and not to the crude vegetables and raw flesh in the undressed state.
The general processes of cookery resolve themselves into the various modes of applying heat under different circumstances. They are the following—roasting, frying, broiling, baking, stewing, and boiling. These operations not only soften the raw materials, and render them alimentary, but the chemical constitution of the cooked substance suffers also such alterations, that its constituent parts can often no longer be recognised.