The Cheapest Way To Clean Your Grill Is With Half An Onion - Chowhound

The trick to cleaning a grill with an onion is to do it while the grill is hot. Preheat your grill to around 400–450 degrees Fahrenheit for 10 minutes, then start scrubbing the grates with the cut side of the onion half. Onions are packed with water, and the high heat of the grill will turn that water into steam, loosening charred debris from the grates. Onion juice is also acidic, and acids are very effective at…