Reassemble the grill, then turn it on to its highest temperature setting and close the hood. There may even be a cleaning level on your burner dials. After a few minutes, open the lid and scrape the grates vigorously with a non-bristle metal grill brush. One I particularly like is the $15 Grill Bristleless Scraper from Taylor. This brush has multiple surfaces and edges to attack and remove grime from grill grates. It even has a handy bottle opener.
Like a boxing ring, it’s hard to knock out your opponent in the first round. Same goes for the Blackstone and the tension between the oil and steel. One round ain’t gonna cut it. To make the best non-sticking and tasty surface your meals deserve, you’re gonna have to repeat the seasoning. So be patient and make it count. Grab your oil again, dab it on the griddle, and watch the heated smoke-fest again. You should stop when the griddle plate is dark brown, and that takes around 2 to 3 times.
After your new griddle is squeaky clean, it’s time to darken it up! This is where we transform the griddle top into a blackened, non-stick perfect cooking surface. So, turn on the burners to the max and let the heat do its thing. After 10-15 minutes, you’ll notice the griddle top will start to brown. Once you see the color change, move on to the next step.
There are a ton of different grill cleaning gizmos to choose from, but nothing can beat a long handled wire brush, a wire bottle-style brush, a five-gallon bucket, and some elbow grease. Avoid toxic cleaning formulas. They can impart an off taste to foods, and aren’t necessary: warm water and dish soap and a paste of vinegar and baking soda are all the cleaning power you need. If your grill has stainless steel exterior surfaces, a good stainless steel cleaner (or vinegar) imparts an extra shine. You’ll also need some durable gloves and a few disposable sponges and rags. Pick an overcast day; hot sun can make it hard to remove streaks from cleaners (plus, it’s cooler working weather).
Clean the exterior of the grill. Soapy water is the safest cleaning solution for most gas grills. Just make a cleaning solution with water and a squirt or two of mild dishwashing soap. Wipe the exterior of the grill with the soapy water, use a rag dipped in clean water to remove the soap residue, and then dry the exterior of the grill thoroughly.