Basa (pangasius) fish maw is the dried swim bladder of Pangasius hypophthalmus, sold in tubular, strip, flaky, and roll forms. Vietnam is the world's main source. Quality is graded by form, size, dryness, and color — and the grading is where buyers most often overpay or get shorted.
Vietnamese Basa Fish Maw: Grading, Specs & How I Source It
Basa fish maw — the dried swim bladder of Pangasius hypophthalmus — is a high-value ingredient in Chinese cuisine, traditional medicine, and premium food markets across Asia. Vietnam is one of the largest producers globally, with most output coming from processing facilities in An Giang and Đồng Tháp provinces in the Mekong Delta.
Why Fish Maw from Vietnam
The pangasius swim bladder is larger relative to body size than most freshwater fish, producing a maw with good thickness and collagen content after drying. Vietnamese basa maw competes directly with grass carp maw from China, but typically at a lower price point, making it attractive for buyers targeting mid-premium segments.
Grading and Specifications
Dried basa maw is graded primarily by size, thickness, and drying quality:
Grade A: Large pieces (≥15cm expanded), uniform pale yellow/cream color, moisture ≤12%, no black spots, no tears. Typically 300–400 pcs/kg dried. Buyers: Hong Kong restaurants, premium Chinese food importers.
Grade B: Smaller pieces (10–15cm), may have minor color variation, moisture ≤14%, 400–600 pcs/kg. More common in retail packs and commodity trade.
Export price (FOB HCM, 2025):
- Grade A: $18–$28/kg (dried weight)
- Grade B: $10–$16/kg
- Ungraded/mixed: $7–$12/kg
The Drying Process Matters
Sun-dried maw has a different texture and flavor profile compared to oven-dried. Most commercial export is oven-dried for consistency, but some buyers — particularly traditional Hong Kong buyers — specify sun-drying. Ask your supplier which method they use.
How I Source
I work with two processing facilities that specialize in basa maw alongside their fillet operations. This integration matters: the maw is extracted at slaughter and processed within hours, which preserves quality. Maw from facilities with poor cold-chain discipline post-extraction has higher moisture and off-odor.
For buyers new to this category, I can arrange samples, provide price comparisons across grade categories, and recommend QC inspection points before shipment.
FAQ
What forms does pangasius fish maw come in?
Tubular (highest value, intact bladder), strip, flaky, and roll. Within each form, size count, moisture level, and color determine the grade — always specify all four parameters in a contract, not just "grade A".
Why is Vietnamese pangasius maw dominant in the market?
Pangasius farming gives a continuous, high-volume supply of uniform bladders as a fillet by-product, so Vietnam can grade consistently at scale — something wild-fishery maw sources cannot match.
How do I verify fish maw quality before shipment?
Inspect at the drying facility, not from photos: check moisture by feel and weight, look for bleaching or artificial thickening, and pull random cartons. I coordinate these inspections for buyers — this is exactly the product where pre-shipment checks pay for themselves.
Sourcing pangasius fish maw from Vietnam?
I work with international buyers on sourcing, supplier evaluation, and factory inspection. If you're evaluating Vietnamese suppliers for this category, I can help you avoid the common pitfalls.
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