This Green Mark (綠印沱), with a red cotton ribbon embedded deep within, indicating a premium release, was developed by Kunming Tea Factory in the 1980s using high-quality raw materials and traditional fermentation. Pressed into a tuocha for export to Japan in 1990. Fine buds, white frost, ruby liquor, distinct medicinal aroma. Leaf selection and aging conditions have resulted in a tea that drinks as close to aged sheng as we have ever encountered in a shoucha … truly exceptional!