Factors that may affect your oven cleaning schedule
How often you use your oven makes a difference in how often it needs to be cleaned. If you use the appliance multiple times a day or many days a week, you may need to clean it on a more regular basis than you would if you only use your oven for the occasional weeknight meal.
Your cooking habits may also play a part in how often your oven needs a clean. If you regularly cook bubbling casseroles or baste roasted meats inside your oven, splatters and stains are likely to build up on the racks and base of your oven over time. To reduce the need for more frequent deep cleanings, wipe up easy-to-reach spills while your oven is still slightly warm, but not hot.