Using washing powder to clean oven trays? | Mumsnet
16-12-2012· I put the tray onto the hob, fill about half with water, sprinkle in about a cup of powder. switch on hob, bring to the boil (careful might foam) switch off and leave over night. Bless you mousymouse! Try also cleaning your floors with it! Try putting your oven racks in the bottom of the dishwasher, on a hot wash.