OthersTonifyingSaccharum Granorum

Yi Tang (Maltose / Barley Malt Sugar)

飴糖 · Yi Tang

Tonifying herb in Traditional Chinese Medicine. Traditional functions: Tonifies the middle, relieves spasmodic pain, moistens the lung, and stops cough.

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Quick Facts

Latin NameSaccharum Granorum
Chinese Name & Pinyin飴糖 · Yi Tang
Medicinal PartOthers
Efficacy CategoryTonifying
Botanical OriginA maltose confection prepared by fermenting glutinous rice or millet with sprouted barley (Saccharum Granorum).
Nature & FlavourSweet; Warm
Channels EnteredSpleen, Stomach, Lung

What Is Yi Tang?

Yi Tang (Maltose / Barley Malt Sugar) is a medicinal herb of Traditional Chinese Medicine.

Produced throughout China from cereal malt workshops.

Nature & Flavour: Sweet; Warm
Channels Entered: Spleen, Stomach, Lung

Yi Tang: Materia Medica Profile

Identification & Quality Standard

Saccharum Granorum

Botanical Origin

A maltose confection prepared by fermenting glutinous rice or millet with sprouted barley (Saccharum Granorum).

Production Regions

Produced throughout China from cereal malt workshops.

Quality Requirements

Superior material is clear amber, highly viscous, and purely sweet without sour fermentation.

Macroscopic Features

Thick, pale yellow to amber, viscous paste or bars; sweet and mild.

Traditional TCM Properties

Sweet; WarmSpleenStomachLung

Traditional Functions

Tonifies the middle, relieves spasmodic pain, moistens the lung, and stops cough. Apply to middle-jiao deficiency-cold abdominal pain, and dry cough from lung dryness.

How Yi Tang Is Used in TCM

In the Chinese materia medica, Yi Tang is classified among the Tonifying herbs. It appears in 3 classical formulas in our library.

Formulas containing Yi Tang are traditionally used for:

Abdominal PainStomach DiscomfortCold LimbsPoor AppetiteFatigue & Low EnergySpontaneous SweatingLung Qi Deficiency

Classical Formulas Containing Yi Tang

Frequently Asked Questions

What is Yi Tang? Are Jiao Yi, maltose, honey and sucrose the same?
Medicinal malt sugar is a paste made by fermenting and saccharifying rice, barley, wheat, millet or maize, also called Jiao Yi, Xing Tang or Tang Xi. The usual Latin names are Saccharum Granorum / Maltosum. Maltose is its main sugar; supermarket syrup or candy is not automatically medicinal Jiao Yi. Honey is sweet-neutral: tonifies the middle, moistens dryness, stops pain and resolves toxin—from the bee, not grain saccharification. Sucrose is merely sweet and does not construct the middle or relax urgency. Write Yi Tang or Jiao Yi; in decoction it must be dissolved in after straining, not boiled long.
What are the TCM properties and traditional uses of Yi Tang?
Materia medica records Yi Tang as sweet and warm, entering the Spleen, Stomach and Lung channels, acting to tonify the middle and relax urgency, moisten the Lung and stop cough, and generate fluid and moisten dryness. It is used for taxation injuring the Spleen, interior urgency with abdominal pain, vacuity-taxation interior urgency, Lung-dryness cough and sore thirsty throat. Sweet-warm, it tonifies Spleen essence and relaxes interior urgency—suited to middle vacuity with spasm, not to damp-heat fullness, the vomiting patient or phlegm-heat cough.
How do you choose soft versus hard malt sugar? Why dissolve it separately?
Medicine usually uses yellow-brown viscous soft maltose. After the other herbs are decocted and strained, dissolve it over a low fire; boiling it with the herbs scorches and sticks. White sugar or honey is not an equal stand-in for constructing the middle and relaxing urgency.
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Learn More About Yi Tang

Explore our in-depth article covering the traditional uses, properties, functions, and TCM context of Yi Tang.

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Medical Disclaimer — This article is provided for educational purposes only and describes traditional Chinese medicine concepts. It is not medical advice, and it is not intended to diagnose, treat, cure or prevent any disease. Always consult a qualified practitioner before using any herb, particularly if you are pregnant, nursing, taking medication or managing a diagnosed condition.

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