Hei Dou Yi (Glycine max Seed Coat) — Dried Black Soybean Hull for Tea & Soup

Hei Dou Yi (Glycine max) is the dried seed coat of the black soybean, known in Traditional Chinese Medicine (TCM) as Hēi Dòu Yī (黑豆衣) and also called Wu Dou Yi (乌豆衣) or Lü Dou Pi (穞豆皮). For centuries it has been prized as a gentle, yin-nourishing food herb used to support the Kidneys, nourish blood, and ease restlessness. Its nature is sweet and neutral, making it a mild yet quietly effective herb for daily nourishment and seasonal balance.

Key Selling Points

• Traditional food-herb black soybean seed coat
• Dried, selected, and cleanly sorted
• Glycine max botanical identity
• Suitable for tea, soup, and congee
• Bulk 500 g pack for daily use

Quality & Sensory

Each batch is carefully sorted and dried to preserve its deep black color, thin papery texture, and faintly nutty, earthy aroma. When simmered, the hulls soften and release a mild, subtly sweet and bean-like flavor that blends smoothly into broths and infusions without overpowering other ingredients.

Technical Specifications

Usage Scenarios

• Herbal tea blends
• Chinese-style soup and broth
• Congee and grain porridge
• Seasonal slow-cooking
• Daily food-herb nourishment

Traditional Uses

In folk herbal practice, Hei Dou Yi is decocted into soups, congee, and gentle daily tonics to support nourishment through the cooler seasons. It is a common ingredient in kidney-supporting soup packs, where it pairs with ingredients like goji berry, jujube, and Chinese yam. As a tea, it is brewed alone or blended with other food herbs for a light, mildly sweet infusion.

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