1mix together baking soda and dish detergent then add sparingly Distilled White Vinegar to make a runny glue like texture. Next, paint or brush onto caked on greasy surfaces and let set for 15-30 minutes. Using a brillo or scouring pad, dip into water and then scrub treated surfaces clean. Rinse with water. My gas grill was caked in grease and burnt food. Took it right off!