{"id":682,"date":"2026-04-05T22:12:21","date_gmt":"2026-04-05T15:12:21","guid":{"rendered":"https:\/\/viet.zone\/seafood\/?p=682"},"modified":"2026-04-05T22:12:26","modified_gmt":"2026-04-05T15:12:26","slug":"vietnamese-basa-fish-maw-sourcing","status":"publish","type":"post","link":"https:\/\/viet.zone\/seafood\/vietnamese-basa-fish-maw-sourcing\/","title":{"rendered":"Vietnamese Basa Fish Maw: Grading, Specs & How I Source It"},"content":{"rendered":"\n

Basa fish maw \u2014 the dried swim bladder of Pangasius hypophthalmus<\/em> \u2014 is a high-value ingredient in Chinese cuisine, traditional medicine, and premium food markets across Asia. It is also one of the more opaque products to source: quality varies significantly between batches, grading is inconsistent, and moisture content \u2014 which determines shelf life and yield \u2014 is rarely verified before shipment.<\/p>\n\n\n\n

I source this product directly from vetted processing plants in the Mekong Delta for buyers in Hong Kong, China, and Japan. This post covers what the product actually is, how grading works, and what to look for when buying.<\/p>\n\n\n\n

About the Product<\/h2>\n\n\n\n

Dried basa fish maw is a byproduct of Vietnam’s pangasius fillet export industry \u2014 one of the largest in the world, operating for over 25 years. The swim bladder is removed during filleting, cleaned, and dried. Because the fillet industry runs year-round, fish maw supply is stable and not subject to seasonal gaps \u2014 unlike many other dried seafood specialty ingredients.<\/p>\n\n\n\n

Vietnam is the world’s most consistent source of basa fish maw, with traceability from the Mekong Delta farming area through to the processing plant.<\/p>\n\n\n\n

Grading \u2014 What I Look For<\/h2>\n\n\n\n
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Grade<\/strong><\/th>Description<\/strong><\/th>Typical Market<\/strong><\/th><\/tr>\n
Grade A<\/td>Intact bladder, pale golden colour, no blood spots, clean cut<\/td>Hong Kong retail, Japan premium<\/td><\/tr>\n
Grade B<\/td>Minor marks or slight defects allowed, still whole<\/td>Industrial processing, price-sensitive markets<\/td><\/tr>\n<\/tbody><\/table><\/figure>\n\n\n\n

I inspect each batch in person before recommending it to buyers. The grading criteria I apply: colour uniformity, absence of blood staining, structural integrity of the bladder wall, and moisture content verified on-site.<\/p>\n\n\n\n

Product Specifications<\/h2>\n\n\n\n
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Species<\/strong><\/td>Basa \/ Pangasius (Pangasius hypophthalmus<\/em>)<\/td><\/tr>\n
Product form<\/strong><\/td>Dried swim bladder \u2014 whole piece, strip form<\/td><\/tr>\n
Moisture<\/strong><\/td>\u2264 14% (export standard); premium lots \u2264 12%<\/td><\/tr>\n
Count \/ size<\/strong><\/td>360\u2013400 pcs\/kg (mid-size, most common); 200\u2013300 pcs\/kg (larger pieces, higher value)<\/td><\/tr>\n
Packaging<\/strong><\/td>Vacuum packed<\/td><\/tr>\n
Origin<\/strong><\/td>Mekong Delta, Vietnam<\/td><\/tr>\n
Traceability<\/strong><\/td>Farm origin, processing facility, batch documentation available<\/td><\/tr>\n<\/tbody><\/table><\/figure>\n\n\n\n

Count and Size \u2014 Why It Matters<\/h2>\n\n\n\n

Count per kilogram is the standard sizing unit for fish maw. Lower count = larger pieces = higher value. The 360\u2013400 pcs\/kg range is the most traded mid-size. For premium HK or Japan buyers who specify large pieces, the 200\u2013300 pcs\/kg range commands a significant price premium and requires more careful selection at the source \u2014 which is where my direct factory access matters.<\/p>\n\n\n\n

How to Source This Product<\/h2>\n\n\n\n

I’m Alan Pham \u2014 Vietnam-based seafood sourcing consultant with 10 years of operations experience at A. Espersen A\/S. I work as a buyer-side agent with direct access to verified processing plants in the Mekong Delta.<\/p>\n\n\n\n

For fish maw, I can provide:<\/p>\n\n\n\n