Tibetan Yak Butter Tea (Po Cha)
Tibetan Plateau — the drink has sustained Tibetan people at extreme altitudes for over 1,000 years
Po cha: salted yak butter tea — compressed tea (pu-erh brick) boiled then churned with yak butter and salt in a wooden tube (dong mo). The churning emulsifies fat into tea creating a rich, savoury, warming beverage suited to extreme altitude cold. Refilled constantly throughout the day — refusing a refill is impolite in Tibetan culture.