Turning Coffee Husks into Premium Tea for Export to Japan
After nearly 12 years of research and experimentation, Viet Thao Nhien Co., Ltd. has successfully applied modern technology to produce high-end Cascara tea made from coffee cherry husks, exporting it to the Japanese market at premium value.

THE FIRST CASCARA TEA SHIPMENT TO JAPAN
In late May, Viet Thao Nhien — headquartered at Loc Son Industrial Park, B’Lao Ward, Lam Dong Province — exported its first batch of Cascara tea bags to Japan. This makes it the first Vietnamese company to conquer this demanding market, marking a major milestone in elevating the value of overlooked Vietnamese agricultural byproducts.
Cascara tea is produced from ripe red Arabica coffee husks, sourced from sustainable coffee-growing regions certified with Rainforest Alliance and USDA standards. The husks are freshly separated, naturally fermented, then dried and packed into tea bags.
This initial shipment — a 2-ton container — features traditional, orange-cinnamon, ginger, and mint flavors, as part of a five-year contract to supply Japanese supermarket chains.
FROM DISCARDED BYPRODUCT TO A BILLION-DOLLAR WELLNESS DRINK
In the past, coffee husks were often discarded or used as fertilizer. Today, thanks to deep-processing technology, Cascara is recognized as a future wellness beverage.
According to Allied Market Research (2024), the global Cascara market is projected to reach USD 1.2 billion by 2032, with an annual growth rate of over 18%.
“At the beginning, no one — not even coffee farmers — believed coffee husks could be drinkable,” said Nguyen Anh Tuan, CEO of Viet Thao Nhien. “We developed 50 prototype samples, sent them to 12 countries — and received only 2 responses. Now, the fact that Japanese consumers trust our product proves its true value.”
BEYOND TEA — BUILDING A CASCARA PRODUCT ECOSYSTEM
The company is currently preparing two additional shipments to Japan and the US this July, while also developing other Cascara-based products, including:
- Ready-to-drink Cascara concentrate
- Cascara functional powder & bio-cosmetic ingredients
- Premium ingredients for kombucha and health foods