For example, in 1820, the German chemist Runge, discovered the caffein of coffee, and a few years after, Oudry, the French chemist, discovered the thein of tea—both crystalline bitter substances ...

Learn more. A Jefferson couple aims to open a shop selling coffee, tea and coffee-brewing equipment in Brunswick this spring. Heidi Townsend said she and her husband, Chris, expect to launch Tern ...