Zao Xin Tu (Furnace Heart Earth / Fu Long Gan) — Traditional Mineral Herb for TCM Decoction

Zao Xin Tu (灶心土), also known as Fu Long Gan (伏龙肝), is a traditional mineral substance used in Traditional Chinese Medicine (TCM), obtained from the earth lining the center of earthen cooking stoves after long use. It has been prized for centuries as a warming, earth-element herb traditionally used to harmonize the Stomach and Spleen, check bleeding, and settle nausea. Its nature is acrid and warm, entering the Spleen and Stomach channels, making it a grounding and stabilizing substance in classical formulas.

Key Selling Points

• Traditional mineral herb known as Fu Long Gan
• Used in classical TCM decoctions
• Warming, earth-element nature
• 500g value pack for regular use
• Sourced and packed by Yuan Sheng Tang

Quality & Sensory

Each batch is carefully collected and processed to preserve its characteristic reddish-brown to yellowish-brown color, fine earthy texture, and neutral mineral aroma. When decocted, it imparts a subtle earthy note to the broth and is traditionally wrapped in cloth or added directly to simmering formulas.

Technical Specifications

Usage Scenarios

• Traditional TCM decoction formulas
• Herbal soup preparation
• Classical home herbal practice
• Combined with other decoction pieces

Traditional Uses

In folk herbal practice, Zao Xin Tu is decocted into soups and classical formulas, often wrapped in cloth to prevent sediment from clouding the broth. It is traditionally paired with herbs like ginger, licorice, and atractylodes in warming digestive formulas. As a daily practice, it is simmered alone or with other decoction pieces to support digestive harmony during seasonal transitions.

FAQ Q&A