Fresh lemons are basically your best friend when it comes to all-natural cleaning, and this is largely due to their acidity. Lemons are good at breaking down grease, are high in citric acid, have antibacterial properties, and, of course, smell delightful, making them an optimal choice for those who are looking to avoid chemical cleaners. Harsh chemicals are never really recommended for cleaning a grill grate anyway, so lemons are a great, reliable way to keep your grates looking nice and sparkly clean for all your future barbecues.