is an old folk saying about the specialties La cucumbers, Lang basil,
Bang pork rolls, Ban crude soysauce, Van Van fish sauce, Dam Set
perches. Van Van fish sauce is another name of Cat Hai fish sauce. It
is so-called for the sauce used to be made mainly by Van Vans with the
main establisment in Cat Hai and 54 other subsidiary distillers
elsewhere. He made his fortune as a fish sauce producer to own various
properties in Hanoi, Hai Phong, Bac Ninh. The fish sauce is so well
known throughout the country for its distinctive flavor, which can not
be mistaken among other fish sauces such as Phu Quoc or Phan Thiet.
People can never forget the taste once they have tried. The sauce is
always on the top list of shopping in the North.