Concept Note · Draft for Discussion

Scaling daily sap collection through controlled industrial processing.

Date sap collection provides income for many smallholder families in Manikganj, but the traditional value chain faces high spoilage, inconsistent earnings, and limited access to formal markets. The Batch Processing Model introduces stabilisation, controlled storage, and scheduled production to convert a fragile rural chain into a safe, reliable system.

Storage Window: 14d
Runs Per Month: 2×
Per Fill Run: 15kL

From scattered harvest to structured flow

A batch architecture that protects quality, stabilises volume, and strengthens income outcomes for rural suppliers.

Section 1

CSR Fit & Strategic Rationale

CSR capital is positioned as catalytic infrastructure funding that links climate-sensitive communities to long-term, market-based income. The concept aligns with rural livelihood, climate resilience, and food-systems priorities.

Community Income · Climate Resilience · Food Systems

For Communities

Converts seasonal, perishable sap into a predictable procurement channel with transparent pricing, hygiene standards, and traceability to tapping clusters.

Income continuity · Dignified work

For CSR Funders

One-time capex plus structured field operations create measurable outcomes: farmer income uplift, volume stabilised, litres processed, and SKUs reaching formal retail. Reporting can integrate carbon and climate-resilience indicators over time.

Indicative Outcome Stack

• Number of farmers with structured offtake
• Litres of sap stabilised per season
• Share of product entering branded channels
• Gender-inclusive tappers and field roles

For Market Partners

Delivers shelf-stable SKUs built around origin, purity, and heritage narratives, without requiring complex back-end redesign. The batch model generates predictable volume windows for promotions and launches.

Origin storytelling · Clean-label products

Section 2

Process Flow

A four-step sequence that protects the sap’s quality while building enough volume for efficient industrial runs.

Schematic Placeholder

Replace this area with a simplified schematic of the sap value chain: trees → village collection → stabilisation hub → tanks → filler → retail packs.

[Insert CDM illustration or process diagram here]

Harvest

1. Daily Collection

Night tapping; pre-dawn harvest delivered to cluster points.

Stabilise

2. Flash Pasteurisation

Sap enters thermal stabilisation within the 4-hour spoilage window.

Store

3. Controlled Storage

Stabilised sap held in aseptic tanks at 4°C for up to 14 days.

Batch Run

4. Batch Production

Bi-weekly fill sprints convert accumulated sap into retail-ready packs.

Section 3

System Logic

The model is designed around three constraints—time, temperature, and volume. The system logic ensures that sap arriving in small daily lots can be safely accumulated into industrial-scale runs without compromising quality.

Time Discipline · Cold Integrity · Volume Efficiency

Intake Logic 4-Hour Window

Night harvesting and early-morning delivery establish the intake rhythm. All upstream collection practices are organised so that sap can enter stabilisation within the critical time threshold.

Storage Logic 4°C Set-Point

Two 10,000 L tanks (20 kL total) provide a 14-day buffer. The system tracks actual inflows against tank capacity, with alerts if temperature or microbial parameters drift outside design range.

Production Logic Bi-Weekly Sprints

The aseptic line runs in planned bi-weekly sprints. This reduces CIP/SIP cycles, improves utilisation, and creates a stable output rhythm for downstream brand and retail partners.

Critical Constraints & Controls

At a glance

Tapping schedules and transport routes are designed around a maximum 4-hour window from tree to stabilisation. Late arrivals are flagged and may be diverted or discarded to protect brand integrity.

Insulated drums, electric vans, and jacketed tanks preserve the cold chain. Temperature logs are reviewed every cycle to ensure compliance with food-safety protocols.

Daily inflows of 1,000–1,200 L accumulate into efficient batch sizes (~15 kL). Production planning software can be layered later to optimise tank turns, SKUs, and promo calendars.

Volume Accumulation Profile (Illustrative)

30-day cycle

Section 4

Core Infrastructure

Minimal but critical assets that turn a fragile rural product into a safe, branded commodity.

Flash Pasteuriser

Thermal processing unit for rapid heat-and-cool cycles that stabilise sap on arrival, locking in quality and preparing it for aseptic storage.

Aseptic Tanks (20 kL)

Jacketed stainless-steel tanks hold stabilised sap at 4°C for up to 14 days, with CIP/SIP integration and sampling points for quality checks.

Cold Chain Fleet

Electric vans and insulated drums maintain temperature between village collection points and processing hub, reducing spoilage and contamination risk.

Section 5

Stakeholder Structure

Clear role division ensures that community, technology, and markets move in sync.

Community & Field

• Smallholder farmers (sap tappers)
• Village collection points and lead farmers
• Hygiene, safety, and food-handling training
• Digital records and transparent payments

Technology & Processing

• SIG aseptic system and technical design
• Stabilisation and storage architecture
• Microbiological monitoring and logbooks
• Continuous process optimisation

CSR & Market Partners

• CSR capital for core infrastructure and field systems
• Retail off-take and brand partnerships
• Co-branding and storytelling opportunities
• Shared reporting on income and impact metrics

Section 6

Capital Requirements

Total Investment (Concept)

$285,000

Concept Estimate · Validation Required

Aseptic Storage Tanks (20,000 L) $65,000

Flash Pasteuriser $45,000

Cold Chain Fleet $100,000

Working Capital & Field Operations $75,000

CSR funds would primarily underwrite fixed assets and early-stage field systems. The long-term economics are sustained by product margins and market offtake, rather than recurring grants.

Section 7

Operating Principles

• Stabilise sap immediately on arrival at hub.
• Maintain strict temperature and aseptic conditions in storage.
• Run filler at planned intervals, not reactive schedules.
• Log volume, temperature, and microbial load each cycle.
• Align procurement, tank capacity, and market off-take windows.

Section 8

Executive Summary

The Manikganj batch model offers a structured way to connect smallholder date sap harvest with modern aseptic processing. By combining immediate stabilisation, controlled storage, and bi-weekly production runs, the system improves equipment utilisation, reduces operating cost, and delivers consistent quality suitable for branded SKUs.

A technical bridge between community harvest and industrial output.