An overview of the process we use to clean our Blackstone griddles after every cook. I've condensed the instructions here. Please read through the article above for more details and step-by-step photos.
heat-resistant grilling gloves, (optional, but recommended)
Instructions
Scrape the Griddle
Remove your cooked food from the griddle. Turn off the burners and propane tank. If the griddle is very hot, let it cool down for a few minutes before getting started cleaning.
Use your spatula or scraper to gently but firmly push food debris and oil on the cooking surface into the grease trap. Be careful not to burn yourself or gouge the seasoning with the scraper's edge. Wearing heat-resistant grilling gloves can help protect your hands and forearms.
Wipe off any remaining visible oil with dry paper towels.
Steam Away the Residue
Add a splash of room-temperature water onto the warm griddle, keeping your face and hands away from the steam that will rise. If the water doesn't bubble, briefly reheat the griddle until it's warm enough to sizzle. Turn the burners and propane back off before continuing.
Before the water evaporates from the cooking surface, use your scraper/spatula wrapped in paper towels to wipe up the loosened grime.
Repeat the process with more water and paper towels until the liquid you're picking up turns from dark brown to clear or light yellow.
Use dry paper towels to wipe down the cooking surface and remove any excess moisture.
Lightly Oil The Cooking Surface
Let the griddle sit until fully cooled or just slightly warm (this is a good time to go eat!). Apply a thin layer of oil to the cooking surface (a couple of tablespoons for a 36" griddle, less for smaller models).
Use a paper towel to evenly coat the surface, including the sides of the griddle plate, and wipe away excess oil.
Clean the Grease Cup and Griddle Body
Dispose of the cooled cooking grease using your preferred method. Since we use disposable foil liners in our grease cup, we either pour the grease into a sealable grease disposal bag or chill it in the foil liner to solidify before tossing it in the trash.
Wipe down the shelves and lid (if your griddle has one) with degreaser spray. Don't spray any degreaser on the cooking surface--it can affect your seasoning.
Cover the griddle with the lid and/or a moisture-resistant cover to protect it until your next cook.
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Video
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