Using this Muc - Off degreaser is easy. First, shake the aerosol can well. Then, spray it directly onto the greasy or dirty surface. Let it sit for a short while to break down the grease. After that, you can use a cloth or a brush to wipe or scrub the area if needed. Finally, rinse the surface thoroughly with water. As for precautions, keep it away from open flames and high - temperature areas. Store it in a cool, dry place. To maintain its effectiveness, make sure the can is properly sealed when not in use.