After months of roasting and baking, an oven tends to get fairly grimy. Built-up grease and charred food accumulate and turn into carbon, causing a strong burning smell when cooking. Letting your oven remain coated in carbon can eventually taint your food and even become a fire hazard. Some ovens have a self-cleaning capability, but sometimes it won’t get the job done if your oven is really dirty. Consider using baking soda and vinegar to clean out your oven for a natural option, or use store-bought cleaners for a fast-acting method. You could even use lemon juice and water for a quick way to clean moderately-dirty ovens..