Can Sha (Bombyx mori Excrementum) — Dried Silkworm Droppings, Traditional Herbal Decoction Piece 500g

Can Sha (蚕砂), also written 蚕沙 and known in Traditional Chinese Medicine (TCM) as Cán Shā, is the dried excrement of the silkworm (Bombyx mori), a traditional herbal decoction piece also called 原蚕屎 or 晚蚕沙. For centuries it has been prized as a wind-damp-dispelling and turbidity-resolving herb, traditionally used to relieve limb aches, joint stiffness, and damp-related heaviness. Its nature is sweet, pungent, and warm, making it a gently warming herb for dispelling dampness, easing the sinews, and harmonizing the Stomach.

Key Selling Points

• Traditional wind-damp-dispelling herbal decoction piece
• Dried silkworm droppings (Bombyx mori excrementum)
• Sun-dried processing to preserve natural quality
• 500g value pack for decoctions and herbal formulas
• Also available as custom-milled powder on request

Quality & Sensory

Each batch is sun-dried to preserve its dark olive-brown to greyish-green color, its light granular texture, and its faint, earthy, slightly grassy aroma. When decocted, Can Sha yields a mild, subtly sweet and gently pungent infusion with a soft, earthy body, blending smoothly with other herbs in a formula without overpowering the decoction.

Technical Specifications

Usage Scenarios

• Traditional herbal decoctions and formulas
• Wind-damp herbal soup packs
• Herbal foot soak blends
• Custom-milled powder for herbal preparations
• Seasonal damp-clearing tonic blends

Traditional Uses

In folk herbal practice, Can Sha is decocted into soups and herbal formulas to dispel wind-damp, ease the sinews, and resolve turbidity. It is a classic ingredient in wind-damp decoctions paired with herbs such as Fang Feng, Qiang Huo, and Du Huo, and is also used in warm herbal foot soaks for the limbs. In daily wellness practice, it appears in seasonal damp-clearing teas and medicinal congee, placing this humble silkworm by-product back into the rhythm of traditional home nourishment.

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