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The Journey of Ong Du ST25 Rice: From Sóc Trăng Shrimp-Rice Fields to Vietnamese Dining

Nguyễn Văn Hùng
15/03/2026
6 min read
The Journey of Ong Du ST25 Rice: From Sóc Trăng Shrimp-Rice Fields to Vietnamese Dining

Each golden grain of Ong Du ST25 organic rice is cultivated on rich alluvial shrimp-rice wetlands.

“Discover the unique shrimp-rice rotation ecosystem cultivating world-renowned ST25 grains with natural fragrant sweetness and zero chemical residues.”

1. The Origins: Symbiotic Shrimp-Rice Ecosystem

Along the coastal floodplains of Sóc Trăng where brackish waterways meet the fertile sediments of the Mekong, the shrimp-rice rotation has become an ecological marvel. Ong Du ST25 rice is not only a world-champion rice variety, but also a testament to purely natural cultivation.

After the shrimp season, mineral-rich organic sediments at the bottom of the ponds become supreme natural fertilizer for the subsequent rice crop. Conversely, decomposing rice stalks foster rich plankton and natural feeds for the next shrimp harvest.

"Clean soil nurtures shrimp, clean shrimp nurture rice. The ST25 plants thrive on nature's purest nutrients without requiring a single drop of synthetic fertilizer." — Senior Agronomist, Sóc Trăng Region

2. The Strict '4-No' Cultivation Principles

To qualify for international organic benchmarks and withstand Happy & Smile's comprehensive quality inspections, every Ong Du parcel strictly adheres to the '4-No' principle: No chemical pesticides, No inorganic fertilizers, No synthetic post-harvest preservatives, and Zero adulteration.

Any chemical intervention would eliminate shrimp larvae in the following cycle, making environmental purity an existential rule for farmers.

Golden organic ST25 rice field at harvest time
Golden paddy panicles harvested in early morning hours to preserve fragrant pandan aroma.

Independent Laboratory Verification 100% of Ong Du ST25 batches distributed via Happy & Smile undergo rigorous residue testing with 'Not Detected' (ND) across over 500 pesticide compounds under EU standards.

3. Distinctive Gourmet Flavor on the Family Table

When cooked, Ong Du ST25 grains maintain their slender shape without bursting or crumbling. The rice possesses an alluring tender chewiness, a rich lingering sweetness, and delicate notes of pandan and fresh green rice flakes.

Remarkably, even after cooling for several hours, the cooked grains remain exceptionally soft and supple without hardening, affirming its regal reputation on gourmet dining tables.

Featured product in this article
Organic ST25 Fragrant Rice
Soc Trang

Organic ST25 Fragrant Rice

The World's Best Rice 2019, 2023 · 100% Produced in Soc Trang

360.000đ/ bag 5kg

Happy & Smile Gourmet Rice Insight

  • Always verify traceability batches and actual certified laboratory residue reports.
  • Cook with an ideal ratio of 1 bowl rice to 1-1.1 bowls water for supreme texture.
  • Store grains in airtight containers in cool, dry conditions away from direct sunlight.
Nguyễn Văn Hùng
Indigenous Agricultural Research Specialist
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