A 2025 field trial found theanine fell as altitude rose. Here is what the research says about high-altitude tea, and what we will and won't claim about our Ilam teas.

Last updated: June 5, 2026 Himalayan green tea is green tea grown high in the mountains of Nepal, in our case in Ilam at 5,000 to 7,000 ft, where cool air slows the leaf's growth and builds up...

Last updated: June 2026 Nepal oolong tea is a partly oxidized loose-leaf tea grown at 5,000 to 7,000 ft in the Himalayan foothills of Ilam, and it's naturally free of bitterness. The altitude slows the leaf's growth, so...