Rendered pork fat is also called lard. Pig is a fatty animal. and that excess amount of fat is rendered down fLor a lot of different purposes. Lard is used in cooking and baking. Lard contrary to popular belief is an healthier alternative to margirine. Lard also is a good source for Omega 3. Lard has a high smoking point which makes it ideal for deep frying. Lard rendered for a longer time has a sronger porky smell and the color gets darrker as it renders longer. Lard extracted while its off white or with light yellow