1. Blot up as much of the grease as you can in a clean, dry, paper towel.
  2. Pretreat the stain, and then soak it in cold water. Do not use hot water, which could make the stain worse if it is protein based.
  3. If the stain is still visible after about 20 minutes, rub detergent on it and machine wash it in cold water. If the stain is gone wash it as you normally would.