Bangkok's specialty coffee scene is booming. While tourists put the social media spotlight on stylish cafés, I've been savouring the floral bouquets, rich liquor notes, and smooth drinking that is Thai coffee - primarily from the northern highlands of Chiang Mai and Chiang Rai - and wondering: why hasn't Thai specialty coffee taken the world by storm yet? As it turns out, Thailand has the second-highest tariffs (45%) on imported coffee. That, plus the fact that it consumes more coffee
