First of all, remove the skin from the fat trimmings. To do this, place the meat on a table, skin side down, and cut the fat from the skin, using a strong knife. When a piece of skin large enough to grasp is freed from the fat, take it in the left hand, and, with the right hand, insert the knife between the skin and fat. Pull the skin and cut with the knife slightly slanted downward. With a little practice, the fat can be cleanly removed from the skin in this way with one clean cut of the knife. The strips of fat should then be cut into cubes of one to one and one-half inches, making them about equal in size so they will try out evenly. Pour into the kettle about a quart of water or melted lard, and then fill it nearly full with the cubes of fat meat. The fat will then heat properly and the lard will be brought out without burning. Keep a moderate fire until the cracklings are brown and light enough to float. Frequent stirring is necessary to prevent burning. When done, remove from the fire and allow to cool slightly. Then strain through a muslin cloth into a jar. Stir it occasionally, until it is cool enough to begin to solidify. Stirring while it is cooling tends to whiten the lard and make it smoother. A quarter of a pound of saleratus added to each one hundred pounds of fat has a like effect. When removing lard from a container for use, take it evenly from the surface. Do not dig down into the center of the lard, for when this is done, it will leave a coating of lard around the sides of the container which will become rancid very quickly by the action of bacteria in the air. § 55. Smoked Meats The process of smoking helps to preserve meat, and, if smoked properly, and with the right kind of fuel, adds a desirable flavor to meat. The creosote formed by the combustion of the wood closes the pores to some extent, and excludes the air. This also helps to keep out the insects. § 56. The Smokehouse The size of smokehouse to build depends on the amount of meat that is to be smoked. In a house eight feet square and ten feet high, the hams, sides, and shoulders of three to five hogs can be smoked at one time. Ventilation should be provided to carry off the warm air in order to prevent overheating the meat. A chimney, made by placing a six inch tile in the roof, makes a good ventilator. The smoke house walls may be built of lumber, brick, or concrete. Lumber would be the cheapest, but least permanent, and concrete the most costly. Brick is no doubt the most satisfactory material for a small smoke house in southern China. Mud bricks may be used, but burnt clay bricks are more lasting. The roof should be made of tile. The best material for the floor is large square tiles, called in Chinese _taai ch’uen_ (大磚). Concrete or brick may also be used, but would be more expensive then _taai ch’uen_.