I have no questions on the cleanliness of McDonalds. As a kid I worked at one and it was a well oiled machine with it's practices of keeping the place clean and quality control of the food they served. That being said the food is so full of preservatives and filler that the quality of it is the drizzling shits. The fries are weird and unnatural, if you ever want a good watch then check out the special features of Super Size Me in the following video....