People use gaiwans in HK. Though mostly very rough ones, unlike the kind of gaiwans Leo thinks are good. Here is one photo:
This is from Lin Heung, an old style yum cha (dimsum) restaurant. People share the table here. Very noisy and mostly men. I don’t like it.
A better and more expensive restaurant that serves with gaiwan (only when specified) is Luk Yu. Both their tea and dim sum are much better:
But their tea quality is never as good as any of the more specialized tea rooms, which are usually hidden away in less expensive areas. The rent in HK is too high and has killed many kinds of better businesses.
Some Chinese restaurants in better hotels can offer slightly better tea with gaiwans, but you have to test your luck.
Remember: gaiwans are sometimes called cha chung in HK.
