In 2025, the Tea Research Institute of Sri Lanka (TRISL) proudly celebrates its centenary, marking 100 years of innovative excellence in the tea industry of Sri Lanka (Ceylon). To mark this significant milestone, and in conjunction with International Tea Day on 21 May 2025, K.R.W.B. Kahandawa traces the history of TRISL and how its extension interventions have shaped the evolution of the tea sector in Sri Lanka.

CONTEXT

As a pioneer in knowledge generation for Sri Lanka’s tea sector, the Tea Research Institute of Sri Lanka (TRISL) has achieved significant milestones that have not only shaped the trajectory of tea in Sri Lanka but also made a lasting impact on global tea research. Renowned as the guiding force behind Ceylon tea—the most sought-after tea in the global market—its influence extends far beyond national borders.