Sterculia Seed

Sterculia Seed (Pang Da Hai): A Cooling, Sweet Herb for Soothing the Throat, Clearing Lung Heat, and Moistening the Intestines

Introduction

Sterculia Seed, known as Pang Da Hai (胖大海) in Traditional Chinese Medicine (TCM), is the dried seed of Sterculia lychnophora. It is cooling and sweet in nature and traditionally used to clear Lung heat, soothe the throat, and moisten dryness. When soaked in water, the seed swells and releases soothing mucilage, making it especially popular as a throat-soothing tea.

What Is Sterculia Seed (Pang Da Hai)?

Pang Da Hai comes from the mature seeds of the Sterculia tree. In TCM, it primarily enters the Lung and Large Intestine meridians. Its actions focus on clearing heat from the Lungs, benefiting the voice, and gently moistening the intestines. It is commonly used for acute, heat-related conditions rather than long-term tonic use.

Health Benefits of Sterculia Seed (Pang Da Hai)

Soothes Sore Throat and Hoarseness
Traditionally used for sore throat, hoarse voice, dry throat, or loss of voice caused by Lung heat or dryness.

Clears Lung Heat
Helpful for cough, throat irritation, or dryness associated with heat in the Lungs, especially when symptoms worsen with speaking.

Moistens the Intestines
Its mucilaginous quality gently moistens dryness and may help relieve constipation due to heat or fluid deficiency.

Cooling and Demulcent in Nature
Forms a gel-like texture when soaked, coating and soothing irritated mucous membranes.

Best for Heat and Dryness Patterns
Most appropriate for individuals with signs of heat; not ideal for cold or damp constitutions.

How to Use Sterculia Seed (Pang Da Hai)

As a Herbal Tea
Soak 1 seed in hot water until fully expanded; drink warm. Often combined with chrysanthemum or licorice.

For Short-Term Use
Typically used temporarily for acute throat or voice issues, not as a daily long-term herb.

During Voice Strain or Heat Exposure
Commonly chosen by singers, speakers, or during hot, dry weather.

Where to Buy Sterculia Seed (Pang Da Hai)

You can find Sterculia Seed at:

• Traditional Chinese medicine shops
• Asian herbal grocery stores
• Specialty herbal tea shops
• Online TCM suppliers

Look for:

• Whole, intact seeds that expand well in water
• Clean, dry, mold-free appearance
• Mild, neutral aroma
• Clear labeling as “Pang Da Hai” from reputable, quality-tested sources

Are There Any Side Effects?

Sterculia Seed is generally safe when used appropriately. Due to its cooling and moistening nature, excessive or prolonged use may cause loose stools or digestive discomfort in those with weak digestion or cold constitutions. Pregnant individuals or those with chronic digestive issues should consult a qualified practitioner before use.

Conclusion

Sterculia Seed (Pang Da Hai) is a cooling TCM herb valued for soothing sore throats, clearing Lung heat, and gently moistening dryness. Its unique swelling, mucilaginous quality makes it especially effective as a short-term tea for voice and throat support.

FAQs

Is Sterculia Seed the same as basil seed or chia seed?
No. While they all swell in water, Pang Da Hai is a distinct medicinal seed used specifically in TCM.

Can Sterculia Seed be used daily?
It is best used short term or occasionally, especially for acute throat or heat-related symptoms.

Is Sterculia Seed stimulating?
No. It is cooling and soothing rather than stimulating.