Like most people, I know the importance of hair covering, having often received food with hair added at no extra charge. One of my vivid memories is an ice cream shop I once frequented. I noted the clerks leaning over the ice cream and dipping it out. I noticed, one day, hair on the ice cream. I haven't gone back since for ice cream or hair.
Hair covering is the most obvious example, but there are many others, some more obvious.
Note the earrings and other jewelry that are not supposed to be worn. The leading food text explains jewelry such as earrings has the potential of falling off and ending up in food. Some jewelry, such as rings, makes it difficult to properly and fully wash hands. But you can see the chefs with jewelry of all sorts. This hygiene watchdog heads Britain's Chartered Institute of Health, and he names names in a catalog of specific and devastating criticism.