Run the fat through the household meat grinder or chop fine in the chopping bowl. Then heat in the double boiler until completely melted, finally straining through a rather thick cloth or two thicknesses of cheese cloth, wrung out in hot water. By this method there is no danger of scorching. Fats heated at a low temperature also keep better than those melted at higher temperature. After the fat is rendered, it should be slowly reheated to sterilize it and make sure it is free from moisture. The bits of tissue strained out, commonly known as cracklings, may be used for shortening purposes or may be added to cornmeal which is to be used as fried cornmeal mush.