It has taken me 50 minutes to do the first one. It wasn’t that dirty. I cleaned the fan and dipped the back panel though to get the perfect finish. The bulb needed replacing too. The customer told me that the mother in law is coming tomorrow and that last Christmas she had spent the whole day cleaning the oven as she had thought it was dirty.
So the oven HAD to be cleaned before she turned up as she didn’t want it to fail the Mother-in-Laws inspection again!