Classic dishes including siu mai and har gow can be found in nearly every dim sum restaurant around the world. But where can you find quail egg siu mai, soup dumplings and preserved sausage buns? Journey with hosts Charmaine Mok and Sam Evans to find out why these varieties of dim sum are endangered. Post reporter Lisa Cam has the story of a labour shortage the industry faces, and how a restaurant in Hong Kong is trying to revitalise these dishes before they go “extinct”.