Community Agroforestry Supply Chain Traceability SOP

#1. Overview & Purpose

OurSiamDream partners with local agricultural cooperatives to build economic resilience through fair-trade agroforestry. A major challenge in ethical specialty markets is greenwashing—middlemen blending high-grade community harvests with commercial commodity crops.

This Standard Operating Procedure establishes the step-by-step procedure for certifying, lot-tagging, and cryptographically verifying batches from rural plots in Northern and Southern Thailand directly to consumers and partner hotels.

#2. Five-Stage Custody Lifecycle

  [1. Farm-Gate Harvest]
  - Weigh raw harvest on calibrated scale.
  - Tag lot with cooperative member token.
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  [2. Processing & Drying]
  - Record fermentation temp & moisture reduction.
  - Ingest quality control cupping scores.
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  [3. Batch Aggregation & Lab Testing]
  - Test for zero pesticide residues (certified organic).
  - Mint Immutable Batch UUID.
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  [4. Eco-Packaging & QR Printing]
  - Print waterproof tamper-evident label.
  - Link QR code to public verification ledger.
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  [5. Retail Scan & Community Dividend]
  - Customer scans QR code in Bangkok or Phuket.
  - View exact farmer revenue allocation (>= 70%).

#3. Batch Metadata Schema (JSON)

Every package produced by partner cooperatives carries an encoded JSON certificate:

{
  "batch_id": "OSD-AGRO-2026-CNX-082",
  "product_name": "Single-Origin Shade-Grown Arabica",
  "harvest_date": "2026-10-12",
  "cooperative": {
    "name": "Mae Wang Sustainable Forest Cooperative",
    "province": "Chiang Mai",
    "elevation_masl": 1280
  },
  "processing_method": "Washed / Sun-Dried",
  "quality_score_sca": 86.5,
  "farmer_payout_percentage": 72.5,
  "verification_url": "https://www.oursiamdream.com/verify/OSD-AGRO-2026-CNX-082"
}

#4. Field Quality Assurance Checklist

• Verify digital scale is calibrated against certified 1.000\,\text{kg} reference weight prior to morning intake.
• Ensure coffee cherry moisture is measured below 11.5\% before packaging to prevent fungal spoilage.
• Validate that packaging bags use compostable polylactic acid (PLA) liners and soy-based inks.
• Test mobile QR scan with offline browser cache to guarantee consumer landing page renders instantaneously.
• Audit bank settlement manifests confirming direct bank transfers to growers within 48 hours of lot intake.