kǔguā chá

苦瓜茶 (kǔguā chá) is an infusion made from dried bitter gourd (Momordica charantia), belonging not to true tea from the leaf of Camellia sinensis but to the category of so-called tea substitutes, or herbal infusions (代用茶, dàiyòng chá). Under the same name in southern China and Taiwan, a combined product is also encountered, where slices or powder of bitter gourd are joined with green tea.

Editor’s note: a specialized research source on this topic was not obtained, therefore the material relies on substantiated general information; individual statements are marked as imprecise.

1. Classification and Origin:

• Type: tea substitute, herbal infusion (代用茶, dàiyòng chá)
• Category: infusion from dried bitter gourd (Momordica charantia); outside the botanical category of true tea from Camellia sinensis
• Origin: subtropical and tropical belt of China, and also Taiwan

Strictly speaking, 苦瓜茶 is not tea in the botanical sense. Bitter gourd (苦瓜, kǔguā) is a vine plant of the gourd family, and its fruits, sliced and dried, are steeped similarly to tea. In the Chinese classification of beverages, such products usually fall under 代用茶 (dàiyòng chá) — “substitute tea” — or as a botanical beverage. A specific national standard number (GB/T) regulating specifically bitter gourd infusion is not confirmed in the materials available to us, therefore we consciously do not cite it; general requirements for such products are described in standards for herbal and botanical infusions and for food safety.

There exist two fundamentally different interpretations of the name:

• Pure bitter gourd infusion — dried rounds or cubes of the fruit without the addition of leaf tea.
• Blended 苦瓜茶 — dried bitter gourd, mixed or co-processed with green tea; in certain Taiwanese variants, the tea leaf, according to some descriptions, is placed inside a hollowed-out and dried fruit (this technique is described as regional and is cited here as unverified).

2. History and Cultural Significance:

Bitter gourd is firmly ingrained in the cuisine of southern China, and the idea of drying it for infusion grew out of the general tradition of 代用茶 — steeping flowers, fruits, and herbs available in season as “tea.” In the southern provinces and Taiwan, where the culture of “cooling” summer beverages is particularly developed, bitter gourd infusion has occupied a niche as an everyday refreshing drink during the hot season.

In Taiwanese and mainland retail practice of the 20th – 21st centuries, 苦瓜茶 took shape as a pre-packaged product — from simple dried slices to bagged blends and powders. The exact dates of appearance of industrial versions and specific pioneering enterprises are not confirmed in our materials, therefore they are not stated here.

It is important to emphasize: 苦瓜茶 is a food beverage, not a medicinal remedy. Any health claims that often accompany retail trade fall outside the scope of encyclopedic description and are not provided here.

3. Botanical Description and Raw Material:

Bitter gourd (苦瓜, kǔguā) is a vine plant of the gourd family; its fruits are used for the infusion. For drying raw material, fruits are generally harvested at the stage of technical maturity, when the flesh is still firm and the seed cavity has not yet filled with hard, mature seeds with a red aril coating. An overripe fruit yields coarser raw material and noticeably alters the taste.

Within the species, several economic types of bitter gourd are distinguished, and the choice of variety directly influences the infusion profile.

• Green (dark green) bitter gourd — with pronounced bitterness and dense skin, yielding a richer, “sharper” infusion in bitterness.
• White (light green, “jade”) bitter gourd — milder in bitterness, with a more delicate taste; valued in gentle blends.
• Small-fruited “wild” and semi-wild forms, sometimes colloquially called 野苦瓜 (yě kǔguā), are distinguished by strong bitterness and are used specifically for infusions.

Specific registered cultivars for infusion production are not confirmed in our materials, therefore individual commercial names are not provided here.

4. Terroir and Cultivation Characteristics:

Bitter gourd is widely cultivated in the subtropical and tropical belt of China. The main growing regions for commercial raw material are the provinces of Guangdong (广东), Guangxi (广西), Hainan (海南), Fujian (福建), Yunnan (云南), as well as Taiwan. The plant is thermophilic, requires a long warm season, abundant sunshine, and well-drained soils; in northern regions, it is grown as an annual in open ground during the summer.

5. Production Technology:

The manufacture of bitter gourd infusion is essentially a controlled dehydration of vegetable raw material. A typical sequence of operations is as follows.

1. Selection and Washing (挑选、清洗). Firm, unripe fruits are taken, and defective ones are removed.
2. Removal of Seed Cavity (去瓤). The fruit is cut open and the seeds and loose inner tissue are scraped out; the purity of taste depends specifically on the thoroughness of this operation.
3. Slicing (切片). The raw material is cut into rings or cubes of standard thickness — this ensures even drying.
4. Pre-treatment (preliminary pre-drying or brief thermal treatment). According to a number of descriptions, blanching or steam treatment is applied to fix color and reduce the “grassy” tone; this stage is indicated as variable.
5. Drying (干燥). Sun drying, hot air, or, in more modern execution, low-temperature and vacuum drying that preserves color are used.
6. Roasting/Pan-firing (焙火 / 炒制). In some technologies, the slices are additionally heated or lightly pan-fired, which imparts a light toasty, nutty-caramel tone and reduces the sharpness of bitterness.
7. Blending (for versions with green tea). The dried gourd is mixed with finished green tea or processed together.
8. Sorting and Packaging (分级、包装). The finished product is sorted by size and packaged, protected from moisture.

The degree of roasting and the presence/absence of a tea component are the main technological “forks” determining the final character of the product.

6. Organoleptic Characteristics:

The dry product appears as light green, golden-green, or, in roasted versions, amber-brown rings and cubes. The aroma is herbaceous-vegetal, with toasty and slightly sweet notes in pan-fired variants.

The infusion yields a light yellow or golden color. The taste is distinctly bitter, with the characteristic “clean” bitterness of gourds, which is followed by a soft sweet aftertaste (回甘, huígān) in quality raw material. Roasted versions give a rounder, warmer, nutty-grainy tone; a blend with green tea adds freshness and light astringency.

9. Brewing:

Brewing guidelines (as for other herbal infusions; adjusted to taste):

• Ratio: approximately 3 – 6 g of dry raw material per 300 – 500 ml of water.
• Temperature: pure bitter gourd infusion develops well with boiling water (95 – 100 °C); a blend with green tea — gentler, around 85 °C, so as not to “burn” the tea component.
• Time: 3 – 5 minutes for the first infusion; the raw material withstands multiple steepings, gradually releasing bitterness.
• It is often drunk cold as well, cooling a strong infusion — the bitterness is perceived as cleaner in this way.

To soften the bitterness, in daily life the infusion is often combined with other botanical components or served with a light sweetness; this is a matter of taste, not a canonical part of the product.

10. Storage:

Like all dried botanical products, bitter gourd infusion requires dry, cool, light-protected packaging; a product that has absorbed moisture quickly loses color and aroma.

11. Price and Counterfeits:

What to look for when choosing:

• Nature of the Product. Pure 苦瓜茶 does not contain leaf of Camellia sinensis; if green tea is listed in the composition, you have a blend. The composition on the package is the first reference point.
• Raw Material in Pieces. In a quality product, neat rings or cubes with the seed cavity removed are visible; an abundance of seeds and loose tissue indicates careless processing.
• Color. Preserved light green or uniform amber (in roasted versions) color is preferable to a dull greyish-brown tone, indicating over-drying or aging.
• Aroma. A clean herbaceous-vegetal or toasty tone without mustiness and moldy smell.
• Taste of the Infusion. The bitterness should be “clean,” transitioning to a sweet aftertaste; a persistently unpleasant, “chemical,” or rancid bitterness is a sign of low quality or spoiled raw material.

12. Interesting Facts:

• 苦瓜茶 is a representative of the broad and ancient Chinese tradition of herbal “teas,” in which the characteristic bitterness of bitter gourd is transformed into an independent taste genre — from the straightforwardly bitter pure infusion to soft roasted and tea blends.