The method: Place your oven rack inside a big trash bag and set it in the sink or on the ground outside. Spray the grates liberally with Easy-Off oven cleaner from at least 9 to 12 inches away.

Place the oven racks in a large, plastic garbage bag. Spray heavily with commercial oven cleaner. Close the bag and let the racks soak for at least an hour or up to overnight. Remove the racks from ...