1) System Spine
These resources define the overall architecture: how to choose processes, design a small plant,
select equipment, implement hygiene/QA, and run an operation that lasts.
Peter Fellows · Practical Action Publishing · comprehensive system manual
Core spine
Tier T1–T2
Scale HH/VIL/SME
Domain: All
One-volume integration of postharvest, processing methods, plant design, packaging, quality assurance,
production management, and small-business mechanics—written explicitly for small-scale contexts.
- Use when: you need a single “master reference” to map processes, hazards, layouts, and costs.
- Outputs: process selection, plant layout logic, hygiene/QA patterns, packaging approach, costing framework.
- Dependencies: mixed; many methods are low-input, but some assume motors, packaging supply, or utilities.
How this connects to the rest of the atlas
Peter Fellows & Sue Azam-Ali · Practical Action Publishing · directory + equipment atlas
Core spine
Tier T2
Scale VIL/SME
Domain: Equipment
A process-by-process and food-group-by-food-group directory that answers: what equipment exists,
what it does, how it fits into a line, and often where to source it.
- Use when: you’re designing an operation and need concrete equipment options (mills, presses, dryers, packers).
- Outputs: equipment shortlist, approximate capacity matching, process-line scaffolding.
- Dependencies: often assumes access to fabricated equipment; still useful for local build/spec.
Peter Fellows · Practical Action Publishing · planning + operations training text
Core spine
Tier T1–T2
Scale VIL/SME
Domain: Planning
A practical “how to actually start” book: feasibility, planning, process control, cost reduction, and product quality—
written for extension workers and small-enterprise builders.
- Use when: you’re moving from experiments → a real production routine with cashflow and repeatable quality.
- Outputs: planning checklists, control points, quality routines, realistic startup steps.
P. Fellows · B. Axtell · M. Dillon · FAO · hygiene, hazards, HACCP-lite for small processors
Core spine
Tier T1–T3
Safety-critical
Scale VIL/SME
Domain: QA
The safety backbone: hazard analysis, clean layout, sanitation routines, quality control methods, and practical QA systems
sized for small rural manufacturers.
- Use when: you handle meat/fish/dairy, low-acid foods, sealed packaging, or you’re selling beyond immediate household.
- Outputs: hazard map, critical control points, cleaning schedules, acceptance criteria.
- Dependencies: can be implemented with low tech; some testing options assume more resources.
P. Fellows · FAO · costing, pricing, records, cashflow
Core spine
Tier T1–T2
Scale VIL/SME
Domain: Finance
The financial skeleton for micro-processing: how to compute real costs, price sustainably, keep records, manage working capital,
and avoid “busy but broke”.
- Use when: you sell anything, or you’re choosing between processes/equipment and need a grounded comparison.
- Outputs: unit cost models, cashflow habits, record templates, pricing logic.
Practical Action technical brief · low-cost hygienic building layout patterns
Tier T1–T2
Scale VIL/SME
Domain: Infrastructure
How to build or retrofit small processing spaces that stay clean: walls, floors, drainage, light, ventilation, water,
and workflow layout—without gold-plated “factory” assumptions.
- Use when: you’re converting a room, shed, or small building into a processing space.
- Outputs: layout rules, washable-surface priorities, utility minimums, contamination control.
Practical Action technical brief · cleanability, materials, valves, pipework, dismantling
Tier T1–T2
Safety-critical
Scale VIL/SME
Domain: Equipment design
A design checklist for locally fabricated equipment: eliminate dirt traps, make it cleanable, choose sane materials,
and avoid “impossible to sanitize” pipework/valves that silently create food poisoning risk.
- Use when: you buy/build any machine that touches food (mills, presses, mixers, pipework).
- Outputs: cleanability constraints and “design to sanitize” rules.
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2) Postharvest & Storage
This section is about not losing food before you even process it: harvest timing, handling, cooling,
pest control, moisture management, and durable storage structures.
R06 — Small-Scale Postharvest Handling Practices (Kitinoja & Kader)
Postharvest Education Foundation / UC Davis lineage · low-cost handling + cooling
Core backbone
Tier T1–T2
Scale HH/VIL/SME
Domain: Postharvest
The canonical small-scale postharvest manual for horticultural crops:
harvest maturity, grading, packhouse logic, low-cost cooling (evaporative, night air), packaging, transport, and storage.
- Use when: you want the cheapest, highest-impact reduction in loss—often bigger leverage than adding new processing.
- Outputs: handling SOPs, cooling choices, packing flow, low-tech storage improvements.
- Dependencies: many techniques are purely T1; some options assume electricity or refrigeration.
Agromisa Foundation / CTA · practical storage structures + moisture logic
Core backbone
Tier T1
Scale HH/VIL
Domain: Storage
Storage is preservation. This manual gives durable, smallholder-ready methods for storing grains, legumes, roots/tubers, and other products
while managing moisture, pests, and rot.
Agromisa · pests, moulds, rodents, prevention and protection
Core backbone
Tier T1
Safety-critical
Scale HH/VIL
Domain: Storage pests
The fastest way to lose a year’s calories is storage pests and mould. This booklet gives prevention methods, practical protection,
and clear descriptions of the major enemies of stored grain.
- Use when: you store maize/rice/wheat/sorghum/millet/beans/lentils for weeks to months.
- Outputs: pest prevention plan, improved storage practices, safer long-term reserves.
Mike & Nancy Bubel · passive cold storage design (temperate climates)
Tier T1
Scale HH/VIL
Domain: Passive cold storage
A pattern book for earth-powered storage: humidity control, ventilation, crop-by-crop temperature bands,
and practical cellar designs.
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3) Preservation Primitives
The “primitives” are methods that turn perishables into durable stores with minimal dependency:
drying, fermentation, salt/smoke, sugar concentration, and safe storage.
3.1 Drying & Dehydration
Sue Azam-Ali · Practical Action · drying physics + quality failures
Core primitive
Tier T1
Scale HH/VIL
Domain: Drying
The most important drying brief in this library: how drying preserves, how drying fails, and how to build/operate drying systems that do not create spoilage or food poisoning.
- Use when: you dry anything (fruit, veg, fish, grains) and need reliability.
- Outputs: dryer selection logic, airflow/temperature sanity, defect diagnosis (case hardening, mould, darkening).
Practical Action technical brief · improved drying systems + options
Tier T1–T2
Scale HH/VIL/SME
Domain: Drying systems
A companion to R10: compares drying technologies (open sun → improved racks → cabinet and solar systems),
and points to commodity-specific drying notes.
CTC-N / Practical Action · step-by-step vegetable drying workflow
Tier T1
Scale HH/VIL
Domain: Drying (veg)
A concise, practical sheet for vegetables: selection, washing, chopping, blanching decisions, loading, drying, and storage.
Ideal for training and SOP printing.
Fabrice Thuillier · Practical Action Publishing · drying enterprise design
Tier T2
Scale VIL/SME
Domain: Drying + enterprise
Turns drying into a durable business: market selection, dryer choice, quality routines, profitability tuning, and templates for planning and records.
3.2 Fermentation & Biological Preservation
Mike Battcock & Sue Azam-Ali · FAO · methods + microbiology + improvement
Core primitive
Tier T1
Scale HH/VIL
Domain: Fermentation
A rigorous fermentation anchor for small-scale contexts: why fermentation works, how it fails, and how to improve traditional methods without industrial dependencies.
National Research Council · open access · fermentation safety + process upgrading
Tier T1–T2
Scale HH/VIL/SME
Domain: Fermentation (deep)
Deepens the fermentation module with microbial mechanisms, safety issues, and practical improvements for traditional ferments (including lesser-known African/Asian staples).
Centre Terre Vivante · Chelsea Green Publishing · traditional preservation techniques
Tier T1
Use with safety discipline
Scale HH/VIL
Domain: Traditional preservation
A dense cookbook of traditional preservation using salt, oil, sugar, vinegar, drying, cold storage, and lactic fermentation.
Valuable as a technique reservoir—but some historical methods require modern hazard awareness.
Peter Fellows · Practical Action Publishing · traditional foods → viable small enterprise
Tier T1–T2
Scale VIL/SME
Domain: Cross-cut synthesis
A cross-cultural synthesis of small-scale processing for traditional foods (Africa/Asia/Latin America),
focused on upgrading quality and profitability without abandoning local food reality.
3.3 Sugar Concentration & Cane Processing (Preservation + Calories)
Practical Action technical brief · cane crushing → juice → boiling → jaggery/sugar
Tier T1–T2
Scale VIL/SME
Domain: Sugar / Jaggery
A practical technical brief describing the basic small-scale process, including the role of bagasse as fuel,
and the conversion of juice into jaggery / solid sugar forms.
Raphael Kaplinsky · Practical Action Publishing · technology choice + economics
Tier T2
Scale SME
Domain: Sugar industry choices
A deeper decision-level book: technology pathways for small-scale sugar production, their economics,
and whether a given tech choice will survive real conditions.
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4) Product Modules
Once postharvest and primitives are stable, you specialize by commodity.
Each module below includes the highest-leverage manuals for that product family.
4.1 Fruits & Vegetables — Processing and Products
Mircea Enachescu Dauthy · FAO · juices, jams, pickles, drying, canning fundamentals
Core module
Tier T1–T2
Scale VIL/SME
Domain: Fruit/veg
Broad technical coverage of fruit/veg processing operations with process flows, equipment concepts,
and quality considerations at small-industry scale.
Peter Fellows · FAO · “home vs for sale”, planning, QA, product options
Core module
Tier T1–T2
Scale HH/VIL/SME
Domain: Fruit/veg
A bridge text: improved methods appropriate for families and groups earning daily income,
plus organization/marketing/QA that traditional processors often lack.
UNIDO Uganda Integrated Programme manual · methods + equipment + QA practices
Core module
Tier T2
Scale VIL/SME
Domain: Fruit/veg
A technology manual aimed at small processors: product lines, equipment, quality assurance,
and practical “how to run the method” for common fruit/veg products.
ICUC (2004) · FAO-hosted PDF · postharvest → processing → packaging → hygiene → business skills
Tier T1–T2
Scale VIL/SME
Domain: Fruit processing
A high-signal background manual covering handling, processing, storage, packaging, hygiene,
and business skills aligned to village processors and small enterprises.
Agromisa · T1 preservation methods with theory + steps
Tier T1
Scale HH/VIL
Domain: Fruit/veg preservation
The most compact, field-oriented preservation manual for fruit/veg: drying, sugar, acid, pickling,
simple bottling, plus the “why” behind spoilage.
CTA “Opportunities in Food Processing” series · product choice, feasibility, markets, equipment, facilities
Tier T2
Scale VIL/SME
Domain: Fruit/veg enterprise
Enterprise-facing companion to the FAO/UNIDO technical manuals: feasibility studies, product selection, marketing,
and operational management for fruit/veg processing businesses.
4.2 Grains, Milling & Bakery
UNIDO technology manual · milling options, bakery methods, QA, maintenance
Core module
Tier T1–T2
Scale VIL/SME
Domain: Grains
A full-stack guide for small mills and bakeries: site, services, production planning,
milling and baking workflows, quality control, and equipment maintenance.
Alvin Siegel & Brian Fawcett · open PDF · pulses as food, flour, and fermentation substrates
Tier T1–T2
Scale HH/VIL/SME
Domain: Legumes
A definitive technical text on processing legumes into edible forms (decortication, splitting, flours, fermentations),
with strong nutrition grounding.
Agromisa · cereal–legume blends, malting/germination, low-cost nutrition
Tier T1–T2
Scale HH/VIL
Domain: Weaning foods
Practical methods for producing nutrient-dense weaning foods using local cereals and legumes,
including techniques like malting/germination to reduce bulk and improve digestibility.
4.3 Roots & Tubers (Cassava / Yam / Sweet Potato / etc.)
UNIDO technology manual · flours, fried products, fermentation, QA, equipment
Core module
Tier T2
Scale VIL/SME
Domain: Roots/tubers
High-utility manual for cassava and other roots/tubers: raw material handling, chipping/drying/milling,
wet and dry fermentation (e.g., fermented cassava), equipment, and QA.
C.C. Wheatley (1995) · CIAT/CGSpace · equipment selection + value-added pathways
Tier T1–T2
Scale HH/VIL/SME
Domain: Roots/tubers
A classic guide on value-added processing (especially cassava flour and related products),
with attention to equipment selection and practical process sequences.
4.4 Oils & Oilseeds
CTA “Opportunities in Food Processing” series · oil extraction, filtration, quality, enterprise
Core module
Tier T2
Scale VIL/SME
Domain: Oils
The definitive small-enterprise manual for edible oils: seed selection and conditioning,
pressing, clarification/filtration, storage stability, by-product handling, and business mechanics.
Practical Action · pressing and expelling oilseeds; pre-treatment; yields; quality
Tier T1–T2
Scale HH/VIL/SME
Domain: Oil extraction
A focused brief on small-scale oil extraction: grinding, conditioning, expellers/presses, basic refining decisions,
and how to avoid quality collapse (rancidity, contamination).
Practical Action Publishing download · which oils are suitable at small scale; extraction methods
Tier T2
Scale VIL/SME
Domain: Oilseed processing
A concise guide to selecting oil crops appropriate for small-scale extraction (those needing little/no refining),
and comparing extraction methods and costs.
4.5 Dairy
Agromisa · simple techniques + small-scale cheese/yoghurt/ghee foundations
Tier T1
Safety-critical
Scale HH/VIL
Domain: Dairy (T1)
The T1 dairy manual: basic small-scale methods for dairy products, with an emphasis on simple techniques
and awareness of contamination risk.
CTA “Opportunities” series · enterprise + product range + hygiene discipline
Tier T2
Safety-critical
Scale VIL/SME
Domain: Dairy (enterprise)
Enterprise manual for milk processing: product options (yoghurts, ghee, cheeses, pasteurized milk),
strict hygiene practices, plant and workflow considerations, and business management.
4.6 Meat & Fish
Agromisa · salting, drying, smoking, fermentation; T1 preservation
Core primitive
Tier T1
Safety-critical
Scale HH/VIL
Domain: Meat/fish
The essential low-tech manual for animal products: spoilage causes, salting/drying/smoking,
fermenting fish, and the boundaries where more technical controls become necessary.
- Safety note: for canning/cooling/freezing sections, cross-check with R04.
CTA “Opportunities” series · products, facilities, markets, QA, financial management
Tier T2
Safety-critical
Scale VIL/SME
Domain: Meat/fish enterprise
A full enterprise manual for meat and fish processing: product lines, equipment, hygienic plant design,
QA procedures, and economics. Use this only alongside the QA spine.
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5) Packaging & Quality Assurance
Packaging and QA are not “nice-to-haves”; they are how you control moisture, oxygen, contamination, and shelf-life
when products move through time and through hands.
Peter Fellows · Agromisa/CTA · low-cost packaging methods for small-scale producers
Core module
Tier T1–T2
Scale HH/VIL/SME
Domain: Packaging
Practical packaging choices that small producers can actually implement: sacks, crates, basic plastics/paper,
protection functions, handling damage, and market-facing presentation.
Peter Fellows & Barrie Axtell · Practical Action Publishing · materials, sealing, economics
Core module
Tier T2–T3
Scale VIL/SME
Domain: Packaging
The deeper packaging bible for small businesses: barrier properties, sealing methods, sourcing constraints,
cost justification, and the realities of packaging supply chains in low-resource environments.
National Center for Home Food Preservation · tested times/pressures for safe canning
Tier T2–T3
Safety-critical
Scale HH
Domain: Canning safety
If you pressure-can low-acid foods, you need tested schedules. This is the safety baseline
(recipes, pressures, times, jar standards) used by extension systems.
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6) Enterprise, Economics, and Loop-Closure
This section contains the “make it last” stack: enterprise manuals, case-based village processing strategy,
and closing loops via feed/by-products so your processing outputs do not become waste.
W.H. Parr et al. · open PDF · turning by-products into balanced feed
Core loop
Tier T1–T2
Scale VIL/SME
Domain: Feed
Converts residues (bran, oilcake, off-grade grain) into value: formulations, plant design,
mixing and milling equipment, and quality control for feed.
Peter Fellows · FAO · primary processing as livelihood + local market strategy
Tier T1–T2
Scale VIL/SME
Domain: Strategy
Case-based, reality-grounded view of village processing as livelihood: what works, what fails,
and how processing choices interact with local supply and demand.
Peter Fellows · FAO · processing as income strategy + organization
Tier T1–T2
Scale VIL/SME
Domain: Strategy
Complements R35 with further models and examples for building viable processing activities,
including organizational dynamics and product selection.
CTA “Opportunities” series · diversification into higher-margin products
Tier T2–T3
Scale SME
Domain: High-value foods
For nodes that have stabilized the basics and want higher value-add:
product differentiation, niche markets, and more complex process/product design.
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