Lard-oil (oleine) has, within a few years, given to pork a new and profitable use, by which the value of the carcass is greatly increased. At some of the large pork-packing depots of the West, one-third of the whole quantity has been thus disposed of. This has withdrawn a large amount of pork from the market, and prevented the depression which must otherwise have occurred.
Where the oil is required, the whole carcass, after taking out the hams and shoulders, is placed in a tub having two bottoms, the upper one perforated with holes, on which the pork is laid, and then tightly covered. Steam, at a high temperature, is then admitted into the tub, and in a short time all the fat is extracted and falls upon the lower bottom. The remaining mass is bones and scraps. The last is fed to pigs, poultry, or dogs, or affords the best kind of manure. The bones are either used for manure, or are converted into animal charcoal, worth about three cents per pound, which is valuable for various purposes in the arts. When the object is to obtain lard of a fine quality, the animal is first skinned, and the adhering fat carefully scraped off. The oily, viscid matter of the skin is thus avoided. When tanned, the skin makes a valuable leather. An aggregate weight of 1790 lbs. from four well-fattened animals, after taking out the hams and shoulders, say about 400 lbs., gave within a fraction of 1200 lbs. of the best lard.
Stearine and Oleine.—Lard and all fatty matters consist of three principles, of which stearine contains the stearic and margaric acids, both of which, when separated, are solid, and used as inferior substitutes for wax or spermaceti candles. The other, oleine, is fluid at a low temperature, and in American commerce, is known as lard-oil. It is very pure, and extensively used for machinery, lamps, and most of the purposes for which olive or spermaceti oils are used.
Curing Hams and Pork.
After dressing, the carcass should be allowed to hang till perfectly drained and cool, when it may be cut up and salted. The usual way is to pack the pork in clean salt, adding brine to the barrel when filled. But it may be dry salted, by rub
bing it in thoroughly on every side of each piece, with a strong leather rubber firmly secured to the palm of the right hand. The pieces are then thrown into heaps and sprinkled with salt, and occasionally turned till cured; or it may at once be packed in dry casks, which are occasionally rolled to bring the salt into contact with every part.
Hams and Shoulders
May be cured in the same manner, either dry or in pickle, but with differently arranged materials. The following is a good pickle for 200 lbs. Take 14 lbs. of Turk Island salt; ½ lb. of saltpetre; 2 qts. of molasses, or 4 lbs. of brown sugar, with water enough to dissolve them. Bring the liquor to the scalding point, and skim off all the impurities which rise to the top. When cold, pour it upon the ham, which should be perfectly cool but not frozen, and closely packed; and if not sufficient to cover it, add enough pure water for this purpose. Some extensive packers in Cincinnati and elsewhere, who send choice hams to market, add pepper, allspice, cinnamon, nutmegs, or mace and cloves.
The hams may remain six or eight weeks in this pickle, then hung up in the smoke-house, with the small end down, and smoked from 10 to 20 days, according to the quantity of smoke. The fire should not be near enough to heat the hams. In Holland and Westphalia, the fire is made in the cellar, and the smoke carried by a flue into a cool, dry chamber. This is undoubtedly the best method of smoking. The hams should at all times be dry and cool, or their flavor will suffer. Green sugar-maple chips are best for smoke; next to them are hickory, sweet-birch, corn-cobs, white-ash, or beech.
The smoke-house is the best place to keep hams till wanted. If removed, they should be kept cool, dry, and free from flies. A canvass-cover for each, saturated with lime, which may be put on with a whitewash brush, is a perfect protection against flies. When not to be kept long, they may be packed in dry salt, or even in sweet brine, without injury. A common method is to pack in dry oats, baked sawdust, &c.