The secret to cleaning the oven is to wipe up spills as soon as they occur and clean the oven with hand dishwashing soap & water. You can also release suborn dirt & grime by placing a shallow pan filled with water and lemon juice in oven and turning it to high for an hour. When grease loosens, you can clean oven with soap & water. In extreme cases, household cleaners can be used. Be sure to wear rubber gloves and eye protection. Try to keep chemical solutions away from stainless steel surfaces as it could discolor the finish.