How to Render Tallow for Soap and Candles

When all that is left solid in the pot is browned meat and gristle, you've gotten about all of the fat you are going to get. Yes, there may be some reluctant chunks of fat and meat still floating in the pot, but sometimes it's just not worth the extra work to get the fat separated out. If you want to get every last drop you can, squeeze the last bits of fat/meat with a slotted spoon against the side of the pot. That should get nearly all of the usable fat separated out.