Season your griddle before and after cooking. This maintains a perfect coating that makes tasty food that won’t stick to the metal. But after cooking, you might have some debris stuck on. Just heat up the griddle and throw water on the stuck food. It’ll boil off easily. Got some pesky food that clings on for dear life? Sprinkle a teaspoon of salt on the debris and then throw water on the griddle while it’s hot. Use paper towels to brush off the debris, and you’re done! Store it safely and call it a day! For any other questions or tips, take a look at our How to Take Care of Your Griddle Complete Guide.
According to Taylor, you'll be able to find this tool in stores, and it's also sold online by Amazon. If you can't wait that long, then use a nylon brush, but make sure to do this only when the grill is cold. Another option is the $15 Sumpri Grill Brush and Scraper. It's made out of stainless steel and is bristle-free, too. While I haven't used it personally, it appears to be popular with Amazon shoppers.
To season the grill, rinse the grill grate with plain water, then dry it thoroughly. The next step is to apply a fat – either vegetable oil or shortening – to the grates, coating all of the cast iron with it. Place the grill grate over a cold grill, then slowly increase the temperature to about 400 degrees and keep it there for about 40 minutes. Finally, allow the grill grate to cool.
While the grill grates and flavorizer bars are removed and soaking, tackle the caked-on gunk in the firebox. Put another bucket underneath the firebox where the grease tray sits to collect debris. The easiest way to start is with a wet/dry shop vacuum, whether full-size or a portable, like Milwaukee’s M18 hand vacuum. Since wet/dry vacs are mostly workshop items, you won’t feel bad about using one to suck up the gunk that’s collected in your grill. You can use the grill brush to help loosen stubborn stuck-on grit. If the deposits are really caked on, dip the wire brush in the bucket of soapy water and get to work. Use a hose to rinse it out when it’s clean.

Brush your grill grates after every use (inspect for wire brush bristles before cooking), and thoroughly clean them every couple of months, depending on grill usage. And twice a year, you should give your grill a thorough cleaning, which helps it cook better and last longer. The basic process is the same for gas or charcoal grills; charcoal grills just have fewer parts.
Check the ignition system. Turn the gas off, and test your ignition button to see if it creates a spark. If both the pressure regulator on the gas tank and the ignition system are running normally (meaning the pressure regulator is tracking and maintaining correct gas tank pressure, and the ignition system is sparking and lighting correctly), you can finish testing the grill by turning the gas back on and lighting the grill up as you normally would.[7]