I REFER to Y. F. Kwok's letter headlined, ''Horrors of hamburger hygiene'' (South China Morning Post, August 10), in which he raised questions about hygiene in well-known fast food restaurants.

I am a regular patron of McDonald's, I have eaten a lot of hamburgers in my time, and I believe that the cleanliness of McDonald's restaurants is beyond reproach. There is nothing wrong with staff using their bare hands, as long as their hands are clean.It would not make sense for McDonald's to tarnish the good reputation it has in Hong Kong.

LUNG HONG-KAY Pokfulam