A post-fermented Chinese dark tea; Fu Zhuan Tea. From Hunan province.

A traditional Chinese tea known as "Fu Zhuan Tea," is a post-fermented dark tea. It originates from Hunan Province and is characterized by its unique square shape. This tea undergoes a fermentation process that gives it a distinct flavor profile. Fu Zhuan Tea is believed to have health benefits, including aiding digestion and weight loss. It is often enjoyed for its earthy and rich taste.