I found this acceptable, as there were no 'odour free' claims on the bottle.The instructions say that the cleaner should be left on for the following times: Slight to medium soiled areas - 15 minutesMedium soiled areas - 30 minutesHeavily soiled areas - 30 - 60 minutesI opted to leave the cleaner on my oven for the full 60 minutes, mainly because I did not want to have to repeat the process.After