A recent visit to a frozen durian processing plant – part of Vietnam’s fast-growing capacity built around the China frozen durian protocol active since 2024. (Source: MAE Vietnam, 2026)
Four key stages observed:
1. Reception and ripeness sorting
– Fresh durian graded by ripeness and external defect.
– Growing-area code and packing-facility code verified for China-bound product.
– Brix sampling at intake to confirm sweetness specification.
2. Deshelling and pulp extraction
– Manual deshelling to preserve pulp integrity.
– Pulp separated from seed; quality-checked for colour and texture.
– Strict hygiene controls in the open-cut handling zone.
3. IQF / block freezing
– Pulp blast-frozen at -35°C to -40°C to reach core -18°C rapidly.
– IQF preserves individual pulp segments; block format for bulk processing buyers.
– Temperature logs maintained throughout.
4. Packing, traceability and documentation
– Vacuum or sealed packing in food-grade material.
– Each batch traceable to growing-area code and harvest date.
– Phytosanitary and MRL test records prepared for China customs clearance.
Vietnam frozen durian exports rose 230% year-on-year in Q1 2026, reflecting rapid investment in this processing segment. (Source: Freshplaza, 2026)
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