2 Packs of Oven Pride(2X 500 ml) Oven Cleaner with Oven Cleaning Bags, Gloves and Microfibre Cleaning Cloths | Oven Pride Complete Oven Cleaning Kit

We cleaned our oven just before Christmas last year but didn't quite clean everything so we bought a further twin pack. I left the solution on for half a day plus overnight, which cleared the floor completely and the racks, however the roof and sides will need further applications as the solution either drips off or slides down to the base of the oven. Also there is only one bag which the instructions say is only suitable for two racks so not enough for a 1 and a half oven. So a twin pack is really just enough to get the job done as you will need more than one go at the oven, and our oven wasn't too bad from when we last cleaned it, but with a bit of effort it does the job and is a lot cheaper than the professional oven cleaning companies