How to Render Tallow at Home

Rendering your own tallow is incredibly cost-effective and simple. All you need is high-quality beef suet and a slow cooker.

Instructions:

  1. Prep the Fat: Ask your local butcher for 5 pounds of grass-fed kidney suet. Keep it frozen until you are ready to render. Cut the semi-frozen suet into small, 1-inch cubes. The smaller the pieces, the faster it will render.

  2. Slow Cook: Place the chopped suet into a slow cooker with 1 cup of water (the water prevents burning during the initial heating phase). Set the cooker to high.

  3. Wait and Watch: Allow the fat to cook for 4 to 5 hours. Stir occasionally to ensure nothing sticks to the bottom.

  4. The Finish Line: You will know the tallow is done when the liquid fat turns completely clear, pale yellow, and small bubbles appear on the surface. The remaining solid pieces (cracklings) will sink to the bottom.

  5. Strain and Store: Carefully strain the hot liquid through a fine-mesh strainer or cheesecloth into clean, dry glass mason jars. Allow it to cool at room temperature with the lids off to prevent condensation from forming.

Chef's Note: Never render tallow on a stovetop, as it can easily burn. Burnt tallow turns orange or dark brown and tastes bitter.

Storage and Shelf Life

Because of its high saturated fat content and low moisture, properly rendered tallow is incredibly shelf-stable. How you store it depends entirely on how quickly you plan to use it.

Storage Method

Shelf Life

Best Used For

Room Temperature

3 to 6 months (up to 1 year)

Daily cooking and skincare. Keeps the tallow soft and easy to scoop. Must be kept below 70°F (21°C) in a dark cupboard.

Refrigerator

6 to 12 months

Bulk storage. The tallow will become rock hard and require softening before use.

Freezer

2+ years

Long-term preservation.

Golden Rules for Storage:
•Always use airtight glass or food-grade stainless steel containers.
•Keep the tallow away from direct sunlight, which accelerates oxidation.
•Never allow water to enter the jar. Moisture is the enemy of rendered fat and will cause it to spoil rapidly.
•Always use a clean, dry spoon when scooping tallow from the jar