01. Reputation in the industry
White fish maw, also known as Bai Nai or Bai Lian, is commonly called "Hong Cha" in Shantou Nanao and "Xi Gu" in the Chaoyang area. It is generally small in size, usually weighing only a few grams to a few dozen grams.
Although white fish maw may look unremarkable in appearance, in terms of quality, it ranks just below money stingray fish maw, frog caul, and spider fish maw, making it a traditionally valuable variety among fish maw. White fish maw has a double-layered texture, and both its taste and efficacy are highly regarded. It is very popular in Hong Kong and other regions and is considered a luxury for beauty nourishment, especially among certain celebrities.
02. Effects and Suitable/Unsuitable Groups
Effects:
1. Boosts immunity. Practices have shown that regularly consuming fish maw can improve one's own immunity.
2. Stops bleeding. White fish maw is also very effective at stopping bleeding and works well for postpartum hemorrhage. Wild white flower frog caul can substitute for money stingray fish maw.
3. Anti-wrinkle and anti-aging. White fish maw helps in skincare, preventing wrinkles and skin aging. It is much more effective than other types of fish maw in reducing acne marks and spots, and also has the effect of nourishing the blood, making it a favorite beauty product.
Suitable for:
General population is suitable.
Not suitable for:
People with excessive phlegm, thick and greasy tongue coating, high blood cholesterol, colds, poor appetite, or indigestion.
Foods not to eat together:
Animal liver. White fish maw should not be eaten together with animal liver, because animal liver is rich in copper, iron, and other elements. Copper and iron ions can easily oxidize the vitamins in other foods, causing them to lose their effectiveness.
03. Fish species
Fish species -- Genus Sciaenidae
The Genus Sciaenidae has ten different fish species. The fish species used for white fish maw are mainly the following:
Light-colored Sciaenidae ↑ Distributed in the Indian Ocean and Western Pacific regions, including the seas of China, India, Sri Lanka, Indonesia, Vietnam, and the Philippines. They live in coastal and estuarine areas, are carnivorous, feeding on small fish and invertebrates, and can be used as edible fish.
Black-edged Sciaenidae ↑ Distributed in the Indo-West Pacific region, inhabiting depths up to 40 meters, and can reach a length of 60 centimeters.
Small-scale yellow croaker ↑ Distributed in the northern waters of Australia and Papua New Guinea in the Central and Western Pacific, with a body length of up to 65 cm.
04. Main production areas
On the market, white fish maw can be either farmed or wild.
Farmed white fish maw mainly comes from domestic areas and is the swim bladder of light-colored yellow croaker. This fish tolerates a wide range of temperature and salinity, has a gentle temperament, and is suitable for intensive sea cage aquaculture. Many domestic locations have seawater farms, such as Raoping in Chaozhou, Humen in Dongguan, Dongshan Island in Fujian, and areas around Zhejiang. Light-colored yellow croaker grows rapidly, reaching 3–4 catties in 36 months, with high economic benefits, and has long been favored by many fish farmers.
The production areas for wild white fish maw are mainly in Southeast Asia, such as the waters of Indonesia, Thailand, Myanmar, Bangladesh, and India, and also the northern waters of Australia and Papua New Guinea. The Arafura Sea in Indonesia is one of the important production areas for wild white fish maw. A 2011 research report noted that, in the fisheries of the Arafura Sea, light-colored yellow croaker is the second most economically valuable fish after hairtail, accounting for about 40% of total catches. In recent years, yellow croaker production in Southeast Asia has also decreased annually, and the yield of white fish maw has declined accordingly, with the fish becoming smaller.
05. Identification features
According to some overseas research data, the front end of the light-colored yellow croaker's swim bladder is truncated, the back end is slender, and the sides do not protrude into lateral sacs. The swim bladder has 22 pairs of lateral branches, and the lateral branches do not have dorsal branches. This indicates that the head of the white fish maw has no protrusions or fine sacs, while the 'swim bladder with lateral branches' shows that the gelatinous body of the white fish maw has two rows of 'water pores.'
Although the fish species of white fish maw all belong to the genus *Cynoscion*, the characteristics of white fish maw vary slightly across regions due to different species. Additionally, the methods used by local fishermen to extract, cut, and dry the swim bladders differ, resulting in white fish maw having a variety of shapes—some are flattened, some are bulging, some are tubular, and some are sheet-like.
Main Characteristics
The gelatin of white fish maw is delicate, and the texture often displays a herringbone pattern. However, some white fish maw are too small and thin, making the herringbone pattern less obvious and replaced by a 'cloth-like' texture.
The gelatinous body of white fish maw has a pair of natural crease lines. In wild white fish maw, the nasolabial lines are generally the same color as the gelatin, that is, yellow. In farmed white fish maw, the natural crease lines often appear black. Regarding the water outlets, most white fish maw have a row of water outlets on both sides of the natural crease lines, but white fish maw from the waters of Myanmar and Thailand do not have water outlets. Some female fish maw even lack nasolabial lines. Whether this is due to species differences or the influence of the marine environment on the fish's swim bladder requires further research.
Female white fish maw does not show variation in thickness, while male fish maw has distinct thick and thin parts. It should be noted that if the white fish maw itself is too thin, the thickness difference may not be very apparent.
If the white fish maw is farmed, the gelatinous chest area often has a 'tongue' (industry term), and this area often contains some oil.
Fish Maw Market Trends and Series Page
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Fish Maw Q&A
Q: What nourishing benefits does fish maw have?
A: Fish maw is rich in collagen, amino acids, and trace elements. Traditionally, it is believed to nourish yin, strengthen kidneys, enhance beauty, moisturize skin, and promote blood circulation. It is especially beneficial for postpartum recovery, post-surgery, and skincare.
Q: Can fish maw be eaten by people of all ages and genders?
A: It is basically suitable for most people, but pregnant women, those with colds or fevers, people with a warm constitution, and children with weaker digestive systems should consume it in moderation. Consulting a traditional Chinese medicine doctor is advised.
Q: How often should fish maw be eaten each week?
A: For health maintenance, 1–2 times a week, 8–15 grams per serving (dry weight) is sufficient. For postpartum recovery or special nourishment, it can be consumed every other day for a consecutive month.
Q: How should fish maw be cooked to avoid nutrient loss?
A: Soak for 12 hours and simmer over low heat for 2–3 hours. It can be paired with chicken, lean meat, red dates, and goji berries. Avoid high heat cooking (collagen will dissolve) or soaking for long periods (nutrients will be lost).
Q: I have old fish maw at home and want to sell it. What should I do?
A: Send photos via WhatsApp to 69035182 for an immediate quote. Free on-site appraisal is available in all 18 districts of Hong Kong.
How does the condition of fish maw affect the price?
If you want to first understand the approximate market value of fish maw, you can send photos of the front and back, thickness, and translucency via WhatsApp. We will give a preliminary response based on the variety, dryness, and preservation condition.
Kam Hoi Shing Dried-Seafood Buyback
WhatsApp:(852) 69035182
After confirming the condition, you can schedule a home visit or in-store handover. The pricing is transparent, and settlement is immediate upon transaction.
