Water-soluble B is thought to be little affected by ordinary home cooking processes. But when foods containing it are heated above boiling temperature, as in commercial canning and cooking in the pressure cooker, the vitamine is believed to be partially or completely destroyed. It is thought the water-soluble B vitamine present in foods is destroyed by cooking them in water to which baking soda or any alkali is added.
Water-soluble C is decidedly affected by heat. Vegetables cooked for even twenty minutes at boiling temperature lose much of their usefulness in preventing scurvy. It is thought, however, that very young carrots cooked for a short time, and canned tomatoes, contain water-soluble C. Drying also destroys to a great extent the anti-scorbutic effect of foods containing water-soluble C. Most dried vegetables and fruits have been found valueless in checking scurvy.
Since there is no question about the vitamine content of uncooked vegetables, the use of salads containing lettuce and raw vegetables such as cabbage and carrots should find favor. Spinach is a valuable food not only because it
contains vitamines, but because it is rich in iron. Young beet tops so often discarded contain too much valuable material to be wasted.
NUTRIMENT VERSUS FLAVOR.—If vegetables of strong flavor are cooked carefully in a large quantity of boiling water (at least 4 quarts), a mild flavor results, but much of the ash is lost. If vegetables are steamed there is little loss of ash but the strong flavor is retained. In the cooking of cabbage, for example, investigation has shown that almost four times as much ash may be lost by boiling as by steaming.
In the cooking of such vegetables as cabbage and onions the question arises: Is it better to steam them and thus lose little nutriment but preserve the strong flavor; or to boil them in much water and thus lose much nutriment but secure delicate flavor? If strong cabbage flavor is not distasteful, steam it or cook it in a small quantity of water by all means. If delicate cabbage flavor is much more pleasing, cook it in much water. Onions have such a strong flavor that most housekeepers prefer to sacrifice nutriment for flavor.
CREAMED CABBAGE (Cooked in Much Water)
A head of cabbage should be cut into quarters and placed in cold water. If it is wilted, it should remain in the water until freshened. Cook the cabbage uncovered from 15 to 25 minutes in a large quantity of boiling water (1 teaspoonful of salt to I quart of water). The time depends upon the age of the cabbage. Drain well. With the knife and fork cut the cabbage in the saucepan. (Do not discard the core of young cabbage since it contains valuable nutrients.) Mix with White Sauce, using two parts of cabbage to one of White Sauce. Heat and serve (see Creamed and Scalloped Vegetables).
Scalloped Cabbage may be prepared by placing creamed cabbage in a baking-dish, covering with Buttered Crumbs and baking until the crumbs are brown.
Instead of using White Sauce with the cabbage, butter (or substitute), pepper, and more salt (if required) may be added. Use 1 tablespoonful of butter (or substitute) to each pint of cabbage.