Blue of London is a subtle combination of Yunnan black tea (one of the best black teas in the world) with fresh and delicate bergamot from Calabria (South of Italy), giving a particularly fine and well balanced blend. Flower petals of cornflower and blue mallow. About Palais des Thés The story of Palais des Thés began in Paris in 1986 when a group of 40 friends, led by François-Xavier Delmas, opened a shop selling tea. They wanted to be sure they were selling good quality products, and decided to source their teas directly from the countries of origin. Passionate about their cause, the friends made it their mission to introduce French people to the best teas. This philosophy still lies behind everything the company does.