By Lottie Verrier • Published: 07 Aug 2026 • 20:53 • 4 minutes readFor instance, did you know an onion is really effective for cleaning your grill? But once the plates have been cleared and the guests have gone home, there is one job nobody looks forward to: cleaning the grill. The good news is that keeping your barbecue spotless doesn’t have to mean hours of scrubbing or expensive cleaning products. A clean barbecue doesn’t just look better, it cooks better too. The onion trick for a cleaner grillA humble onion can be surprisingly effective when it comes to barbecue cleaning.