Oven Cleaner

The pink stuff or elbow grease they not strong chemicals

Astonish oven cleaner is amazing, or try the pink stuff paste

it depends on how bad your oven is and whether or not the bottom, shelves or both that need done.

The pink stuff I clean my regular with this. The shelves I take out and wash with fairy and scrub x

Baking soda.

I use the pink stuff , it is good for most of it, just the bottom of the oven it doesn't seem to want to come off, had the pink stiff and the steamer

Put the oven on to heat a while. . And then it loosens up the tough grime. Cream cleaner. Brillo pad type even baking soda any abrasive type thing. Then rinse off.

The rakes I headed of people putting in bath tub and soaking over night

Place the oven racks in your bathtub carefully, on top of the towel or sponges. Next, fill your tub with just enough hot water to cover the racks. Then add a cup of dishwasher powder. Let the racks soak overnight.