How to Power Wash a Grill

Step-by-step guide to pressure washing your gas or propane grill.
Includes important safety precautions.

After a long summer of backyard grilling, your barbecue might have built-up grease and burnt-on food stuck to the grates and grill pan. Return it to like-new condition with a home pressure washer.

Plan Ahead

Pressure washing the grill is a project you'll take on just once or twice per year, so it's worth doing right. Plan ahead so the job goes smoothly.

You'll need a cleanser that can cut through a summer's worth of cooked-on grease, but some industrial-strength degreasers come with environmental restrictions that prevent you from rinsing them into the sewer system. Others will harm your landscaping if you allow them to run off into your grass or gardens. Read the labels carefully, and choose a product that can remove grime without harming your surroundings.

Choose a sunny spot on a warm day to pressure wash your grill. This will help the unit dry more quickly and prevent rusting.

Safety First

If you have a gas or propane grill, there are some important safety precautions you should take before pressure washing:

  • Remove the propane tank, and place it in an out of the way location.
  • Disconnect the natural gas if your grill is connected to your home's built-in gas line.
  • Unplug the electric ignition mechanism. 

Pressure Wash

Fill your pressure washer's detergent reservoir, and fit a medium, general-purpose nozzle on the end of the hose.

Remove the grates for separate cleaning. Try using baking soda for a no-scrub technique.

Spray the entire grill, from bottom to top, with the degreaser. Allow it to sit for a few minutes to soak into the grime.

Rinse the grill from top to bottom until all the grease and baked-on food is washed away.

Let the grill dry completely, and then oil the grates to prevent sticking.

Reattach the propane, natural gas and electrical connections.


Proper storage will extend the life of your grill and keep it cleaner longer. If you can, store your grill inside a garage or garden shed to provide maximum protection from the elements. If indoor storage isn't an option, use a tight-fitting grill cover.

Things You Will Need

  • Pressure washer
  • Grill degreaser
  • Water
  • Medium nozzle
  • Paper towel
  • Olive oil

About the Author

Tricia Ballad is a writer, author and project geek. She has written several books including two novels, teaches classes on goal setting and project planning for writers, and loves to cook in her spare time. She is living proof that you can earn a living with a degree in creative writing.