Tea farmers pick purple tea leaves at a purple tea plantation in Muranga County, Kenya, on May 7, 2024. Kenyan purple tea is a unique tea tree variety, with purple leaves. Grown in the equatorial regions of Kenya's rolling hills, purple tea trees grow in an environment with abundant sunshine and proper temperature variations between day and night.(Photo: Xinhua)

Workers process purple tea leaves at a purple tea workshop in Muranga County, Kenya, on May 6, 2024. Kenyan purple tea is a unique tea tree variety, with purple leaves. Grown in the equatorial regions of Kenya's rolling hills, purple tea trees grow in an environment with abundant sunshine and proper temperature variations between day and night.(Photo: Xinhua)

A worker processes purple tea leaves at a purple tea workshop in Muranga County, Kenya, on May 7, 2024. Kenyan purple tea is a unique tea tree variety, with purple leaves. Grown in the equatorial regions of Kenya's rolling hills, purple tea trees grow in an environment with abundant sunshine and proper temperature variations between day and night.(Photo: Xinhua)

Farmers pick purple tea leaves at a purple tea plantation in Muranga County, Kenya, on May 7, 2024. Kenyan purple tea is a unique tea tree variety, with purple leaves. Grown in the equatorial regions of Kenya's rolling hills, purple tea trees grow in an environment with abundant sunshine and proper temperature variations between day and night.(Photo: Xinhua)