The Bangladesh Tea Research Institute, or BTRI, isn’t a commercial estate as such but rather the scientific headquarters of Bangladeshi tea production. New strains of tea and new growing techniques are tried out here, and the staff are knowledgeable. There is also a production factory, which with a bit of luck you might be allowed to visit, and a tea-tasting room which you may be ushered into. They’re not used to having walk-in visitors, so phone ahead if you can.
