We’re continuing our series about how to clean your appliances with what you need to know to clean your oven. When you notice a residue on the racks or bottom of the oven, grime on the door, or smoke when you turn on the oven, you know it’s time for the oven to get cleaned. But when do you use the oven’s self-cleaning feature and when do you roll up your sleeves and clean the oven yourself?