Many Different Kinds Of Scientific Cooking Principles

Proper cookery renders good food material morecooler water above, causing a simmering sound; but
digestible. When scientifically done, cooking changesas the heat increases, the bubbles will rise higher and
each of the food elements, with the exception ofhigher before collapsing, and in a short time will pass
fats, in much the same manner as do the digestiveentirely through the water, escaping from its surface,
juices, and at the same time it breaks up the foodcausing more or less agitation, according to the
by dissolving the soluble portions, so that its elementsrapidity with which they are formed. Water boils
are more readily acted upon by the digestive fluids.when the bubbles thus rise to the surface, and
Cookery, however, often fails to attain the desiredsteam is thrown off. The mechanical action of the
end; and the best material is rendered useless andwater is increased by rapid bubbling, but not the
unwholesome by a improper preparation.heat; and to boil anything violently does not expedite
It is rare to find a table, some portion of the foodthe cooking process, save that by the mechanical
upon which is not rendered unwholesome either byaction of the water the food is broken into smaller
improper preparatory treatment, or by the additionpieces, which are for this reason more readily
of some deleterious substance. This is doubtless duesoftened. But violent boiling occasions an enormous
to the fact that the preparation of food being such awaste of fuel, and by driving away in the steam the
commonplace matter, its important relations tovolatile and savory elements of the food, renders it
health, mind, and body have been overlooked, and itmuch less palatable, if not altogether tasteless. The
has been regarded as a menial service which mightsolvent properties of water are so increased by heat
be undertaken with little or no preparation, andthat it permeates the food, rendering its hard and
without attention to matters other than those whichtough constituents soft and easy of digestion.
relate to the pleasure of the eye and the palate.The liquids mostly employed in the cooking of foods
With taste only as a criterion, it is so easy to disguiseare water and milk. Water is best suited for the
the results of careless and improper cookery of foodcooking of most foods, but for such farinaceous
by the use of flavors and condiments, as well as tofoods as rice, macaroni, and farina, milk, or at least
palm off upon the digestive organs all sorts of inferiorpart milk, is preferable, as it adds to their nutritive
material, that poor cookery has come to be the rulevalue. In using milk for cooking purposes, it should be
rather than the exception.remembered that being more dense than water,
Methods of cooking.when heated, less steam escapes, and consequently
Cookery is the art of preparing food for the table byit boils sooner than does water. Then, too, milk being
dressing, or by the application of heat in somemore dense, when it is used alone for cooking, a little
manner. A proper source of heat having beenlarger quantity of fluid will be required than when
secured, the next step is to apply it to the food inwater is used.
some manner. The principal methods commonlySteaming, as its name implies, is the cooking of food
employed are roasting, broiling, baking, boiling,by the use of steam. There are several ways of
stewing, simmering, steaming, and frying.steaming, the most common of which is by placing
Roasting is cooking food in its own juices before anthe food in a perforated dish over a vessel of boiling
open fire.  Broiling, or grilling, is cooking by radiantwater. For foods not needing the solvent powers of
heat. This method is only adapted to thin pieces ofwater, or which already contain a large amount of
food with a considerable amount of surface. Largermoisture, this method is preferable to boiling. Another
and more compact foods should be roasted orform of cooking, which is usually termed steaming, is
baked. Roasting and broiling are allied in principle. Inthat of placing the food, with or without water, as
both, the work is chiefly done by the radiation ofneeded, in a closed vessel which is placed inside
heat directly upon the surface of the food, althoughanother vessel containing boiling water. Such an
some heat is communicated by the hot airapparatus is termed a double boiler. Food cooked in
surrounding the food. The intense heat applied to theits own juices in a covered dish in a hot oven, is
food soon sears its outer surfaces, and thussometimes spoken of as being steamed or
prevents the escape of its juices. If care be takensmothered.
frequently to turn the food so that its entire surfaceStewing is the prolonged cooking of food in a small
will be thus acted upon, the interior of the mass isquantity of liquid, the temperature of which is just
cooked by its own juices.below the boiling point. Stewing should not be
Baking is the cooking of food by dry heat in a closedconfounded with simmering, which is slow, steady
oven. Only foods containing a considerable degree ofboiling. The proper temperature for stewing is most
moisture are adapted for cooking by this method.easily secured by the use of the double boiler. The
The hot, dry air which fills the oven is always thirstingwater in the outer vessel boils, while that in the inner
for moisture, and will take from every moistvessel does not, being kept a little below the
substance to which it has access a quantity of watertemperature of the water from which its heat is
proportionate to its degree of heat. Foods containingobtained, by the constant evaporation at a
but a small amount of moisture, unless protected intemperature a little below the boiling point.
some manner from the action of the heated air, or inFrying, which is the cooking of food in hot fat, is a
some way supplied with moisture during the cookingmethod not to be recommended Unlike all the other
process, come from the oven dry, hard, andfood elements, fat is rendered less digestible by
unpalatable.cooking. Doubtless it is for this reason that nature
Boiling is the cooking of food in a boiling liquid. Waterhas provided those foods which require the most
is the usual medium employed for this purpose. Whenprolonged cooking to fit them for use with only a
water is heated, as its temperature is increased,small proportion of fat, and it would seem to indicate
minute bubbles of air which have been dissolved by itthat any food to be subjected to a high degree of
are given off. As the temperature rises, bubbles ofheat should not be mixed and compounded largely of
steam will begin to form at the bottom of the vessel.fats.
At first these will be condensed as they rise into the