This week I rendered lard from a slaughtered pig. The fat was saved in vacuum seal bags and thrown into the freezer for later. Once defrosted, I chunk it up in small cubes (using only the leaf fat cutting out any blood clots) and then add a thin layer to a thick bottom stock pot with about a 1/4 inch of water on a low-medium heat. Once it starts to "melt" down or render its fat, I added the rest of it. It gets stirred frequently to prevent any kind of scorching. I only fill it to about 3/4 full cause it can boil over. The cracklings, which is fat that does not render, will float to the top at first and then once rendered down, it will finally sink down. Your lard is ready to put up once these have gone down to the bottom of the pan and is at least 255 F, it will probably be more than that though. I pour mine thru a cloth lined colander and into a crock and store it in the outside dairy fridge, but if you have a root cellar that would be a perfect area. If done correctly and you make sure all the water is evaporated, it will not go rancid. This is great for making tamales, cookies, pie crust or whatever else you make with shortening. It will shrink up when it cools down.