We are going back in history to learn the long-lost skill of rendering beef tallow fat like many pioneers made & used. Beef tallow was used in cooking as it makes an amazing oil for frying.
Next drain all the liquid oil and strain out the cracklin’s.
Use a fine mesh strainer, a paper towel and line the towel over a strainer, which should sit over a large bowl.
Store it in an air-tight container to avoid oxidization it can be at room temperature for up to a year or longer. You can store it in the fridge as it will last even longer there.