Factory-Scale Mango Pickle (Oil-Preserved, Shelf-Stable)

Instructions

1. 1

   Raw material prep — inspect, wash, sanitize, and sort mangoes. Remove spoiled pieces. Cut to uniform 20–25 mm cubes. Drain thoroughly.

2. 2

   Dry-salting (curing) — In a sanitized SS vessel, toss mango pieces with 9 kg salt. Hold 12–24 hours at 4–10°C or ambient controlled room (prefer cooler) to draw moisture. Drain and retain minimal brine; target visible surface moisture removed.

3. 3

   Blanch / enzyme control (optional) — For extra stability, blanch mango pieces 60–90 sec in 80–85°C water or steam, then cool on sanitized belt and drain. Pat dry to remove surface moisture. This reduces enzyme activity and microbial load.

4. 4

   Spice & oil heat treatment — Roast spices (if not pre-roasted) until aromatic; cool. In a kettle, heat oil to 90–95°C, add roasted spice mix, mustard seeds, garlic/ginger; hold 3–5 minutes to bloom flavors and reduce microbial load. Cool oil-spice to 60–65°C for mixing.

5. 5

   Acidification — Mix vinegar into the oil-spice blend or spray evenly onto mango pieces prior to oiling to achieve final product pH ≤ 4.0–4.2. If using concentrated acetic acid, dose carefully and verify pH with calibrated meter. Target pH ≤ 4.0 for margin.

6. 6

   Combine — In a sanitary mixing vessel, add drained mango pieces, sprinkle the tempered spice-oil-acid blend while agitating to coat uniformly. Ensure total oil ~20% of finished weight. Check and adjust seasoning, vinegar, and preservative additions now.

7. 7

   Preservative & antioxidant addition — If using, dissolve preservative in small waterless medium or oil as recommended and add to batch while mixing. Add tocopherols to oil if used.

8. 8

   Cooling & resting — Allow mixture to equilibrate 12–24 hours at controlled cool ambient (15–25°C) so flavors marry and oil rises to form protective layer. Inspect for free water; drain if excessive.

9. 9

   Filling & headspace control — Fill jars/bottles with clean, sanitized fill equipment leaving minimal headspace. Flush headspace with nitrogen if available to reduce oxygen. Ensure oil fully covers solids to create continuous oil layer.

10. 10

    Sealing & pasteurization choice — Cap hermetically. For non-retorted product rely on pH, aw, oil, and preservative controls. If thermal processing desired, perform validated hot-fill or mild pasteurization (e.g., 85°C for 10–15 min or validated retort cycle) ensuring product texture acceptance.

11. 11

    Cooling & storage — Cool sealed containers to ambient; store in cool, dark warehouse. Label with manufacture and best-before dates.

12. 12

    QC tests — For each batch record: final pH (target ≤ 4.0–4.2), aw (aim <0.90), salt %, peroxide value (oil rancidity), microbial plate counts, yeast & mold limits, and sensory check. Retain samples for shelf-life program.