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Continue to Chatnon-toxic oven cleaner. Dawn, vinegar, baking soda, lemon juice. Smear paste all over inside of oven, including glass door, and let it sit for several hours. Scrub baked on spots then wipe clean. http://www.home-decoras.net/diy-crafts/non-toxic-oven-cleaner-dawn-vinegar-baking-soda-lemon-juice-smear-paste-all-over-inside-of-oven-including-glass-door-and-let-it-sit-for-several-hours-scrub-baked-on-spots-then-wipe-clean/