How do you use the H Star Wooden Grill Cleaner? Like this! When you first receive your H Star Hardwood Grill Scraper, it has no grooves. By using the tool, you form the grooves that will perfectly match your grill! The best method of forming the grooves is by heating up your grill before you use the tool the first time. If the grill is hot, it will more easily form grooves in the wood. Once the grill is hot, turn it off if it is a gas grill. If it is a charcoal grill, you can wait until you are finished using the grill and it is still hot. To form the grooves, you will put slow, firm pressure on the handle of the tool and push the scraper slowly back and forth. First on one side of the scraper, and then flip it over and do the other side. It is very important to make sure that you match up with the existing grooves that are forming so that you are making a single set of grooves. After the heat has formed the grooves that correspond exactly with your grill, stop. Wait until the grill is cool before you continue cleaning it, and only use it when the grill is cool. This will allow the tool to last for a very long time!