Looking for a homemade oven cleaner for our very dirty oven

If you can get hold of cuttle fish, try a pet shop, they should have them at pet stores to keep small parrots beaks down. If you remove the hard shell form the outside with a screw driver, rub this on the oven, it will wear down quickly so you may need 4 or 5. This will scour scratch free, the same as baking soda does. Or if you mix a little white vinegar with baking soda into a paste and rug that on it will take longer, but will work with a lot of elbow grease. Take the bulk of it off with a flat scraper blade to remove any loose carbon first. Good luck.

Make a paste mixture with baking soda and white vinegar. Apply to the soiled area leaving it on long enough for the stains to lift. Then wipe out and clean as you normally would.

I clean all the loose stuff out of the oven first. Then I use a Pyrex cup and fill it with white vinegar. I put the cup of vinegar in a 250 degree oven over night. This loosens most of the baked on grease in the oven. Then I wipe it clean. You might have to do it a second time to get the really thick baked on grease out.

Before the days of self-cleaning ovens, I used ammonia. Left it in the oven over night. The white vinegar works fantastic in the microwave too.

I also clean out all the loose stuff then make a paste of dawn dish detergent and baking soda. I use a pastry brush and apply lightly to all the grime. Let it sit for a few hours then rinse Thoroughly.