What is the most important thing to know before buying an oil plant?

The single most important factor is your raw material. Oil type determines everything: which press model, what conditioning parameters, which refinery stages are needed, and what quality issues to expect. Before speaking to any equipment supplier, know your raw material's oil content (laboratory test), typical FFA level, moisture content, and whether it's a high-volume consistent supply or seasonal/variable. Everything else can be figured out after.

How do I know if my oil will be profitable?

Basic profitability calculation: (Daily oil output in kg × retail oil price per kg) − (Daily seed cost + daily operating cost) = Daily gross margin. Example: 30 TPD soybean plant produces ~5.65T refined oil/day. At $1.20/kg retail (Nigeria), gross revenue = $6,780/day. Raw soybean at $0.45/kg × 30T = $13,500/day raw material cost. Operating cost ~$600/day. Net margin: negative. This shows why scale and market price matter — at $1.40/kg or with lower local soybean price, the math works. Always model your local specific prices before investing.

Do I need a refinery, or can I sell crude oil?

Crude oil is saleable but at significant discount (20–40% below refined). The buyers of crude oil are downstream refineries — you become a commodity supplier. If you want to sell to consumers or food manufacturers, refined oil is required. The decision depends on: who will buy your oil, what they will pay, and whether the refinery capital is justified. For markets with existing refinery capacity (e.g., Cairo, Lagos, Nairobi), selling crude oil to a local refinery can be viable initially while you save capital for your own refinery.

What is a realistic timeline to get a plant running?

From decision to first oil: 6–12 months typically. Breakdown: 1–2 months equipment selection and order; 1–2 months manufacturing; 1 month shipping; 1–2 months site preparation and civil works (parallel with manufacturing); 2–4 weeks installation; 1–2 weeks commissioning. Delays usually occur in: customs clearance (allow 2–4 weeks buffer), civil works (often underestimated), regulatory approvals (start early — 3–6 months in some countries). Our fastest project: 67 days from order to first oil (Uganda 10 TPD, pre-built factory, fast customs).

Edible Oil Processing Knowledge Base — 8 Essential Guides for Plant Owners & Investors

Fundamentals ⏱ 8 min read Beginner

Cold-Pressed vs Expeller-Pressed Oil: Complete Technical & Commercial Guide

What is Cold-Pressed Oil?

Cold-pressed oil is extracted at a temperature below 50°C throughout the entire process — this means both the press barrel temperature and the oil temperature at the point of collection must stay under this threshold. True cold-pressing requires no pre-heating (no roasting or conditioning), and pressing at reduced speed to minimise friction heat. The 50°C threshold is not arbitrary — it is the standard adopted by most organic certification bodies (EU Organic, USDA NOP, and equivalent) as the point above which heat-sensitive nutritional compounds begin to degrade meaningfully.

What is Expeller-Pressed Oil?

Expeller-pressed oil (also called screw-pressed) is extracted using a rotating screw shaft that mechanically crushes seeds. The friction inherent in this process raises temperatures significantly — barrel operating temperatures typically reach 80–130°C depending on the raw material, press model, and operator settings. The vast majority of commercial edible oil worldwide is expeller-pressed. "Expeller-pressed" does not mean chemically extracted — it is still a mechanical process, just without temperature control.

Cold-Pressed Advantages

Preserves natural polyphenols, tocopherols (vitamin E), and phytosterols that degrade above 60°C
Light colour, mild flavour, and natural aroma — premium sensory profile
Retains heat-sensitive compounds including oleocanthal (olive) and gamma-linolenic acid (hemp)
Commands 15–25% retail price premium in health food, organic, and specialty channels
Minimal refining needed — cold-pressed oil often sold as raw/unrefined, further reducing production cost

Cold-Pressed Disadvantages

Lower oil extraction: only 60–70% of available oil is extracted vs 87–95% for hot expeller pressing
Higher residual oil in press cake: 10–20% vs 5–8% for hot pressing — cake has lower value
Economically unviable for low-oil-content seeds: soybean (17–19% oil), cottonseed (18–25% oil) cannot justify cold-press economics
Lower throughput per press — slower speed means smaller daily output from same machine
Higher per-litre production cost before the premium is factored in

Commercial Decision Framework

The choice between cold-press and expeller is primarily a market decision, not a technical one. Premium retail markets (EU organic, US health food stores, Asian premium consumers, cosmetic ingredient buyers) → cold-press is justified. Commodity markets (bulk refined oil, industrial food manufacturing, wholesale) → expeller pressing is the clear choice economically.

Many sophisticated plants run a dual-mode operation: cold-press the first 30–40% of each seed batch for premium bottled oil at retail price, then hot-press the remainder for commodity-grade refined oil. This maximises total revenue from the same raw material.

Parameter	Cold-Pressed	Expeller-Pressed
Press barrel temperature	<50°C (controlled)	80–130°C (friction)
Oil yield (% of available)	60–70%	87–95%
Residual oil in cake	10–20%	5–8%
Nutritional preservation	High (tocopherols, polyphenols)	Moderate (some heat loss)
Retail price premium	+15–25%	Standard commodity price
Suitable seeds	High-oil seeds only (≥30% oil)	All seed types
Refinery needed?	Usually not for premium grade	Yes for retail-grade oil
Best market	Premium retail, organic, cosmetic	Commodity, bulk, food mfg

Planning ⏱ 6 min read Beginner

Oil Yield Calculator: How Much Oil Can You Make?

The Yield Formula

The fundamental formula for estimating oil output from raw seeds is:

Oil Output (kg) = Seed Weight (kg) × Oil Content (%) × Extraction Efficiency (%)

Example: 1,000 kg peanuts × 50% oil content × 90% extraction efficiency = 450 kg crude oil

Extraction Efficiency by Method

Cold press: 60–70% of oil content extracted
Hot expeller press: 87–95% of oil content extracted
Solvent extraction (hexane): 97–99% of oil content extracted

The gap between seed oil content and actual press yield exists because mechanical pressing cannot disrupt every oil cell. Residual oil remains in the press cake — which is why press cake still has feed value and why solvent extraction is used downstream in large facilities to recover residual oil from cake.

🧮 Yield Estimator — Try Your Seed Type

Oil seed type

Daily seed input (kg)

Press method

—

kg crude oil / day

—

kg press cake / day

—

Est. daily crude oil value (USD)

Estimates based on typical oil content midpoints and average extraction efficiency. Actual yields depend on seed variety, moisture content, and press condition. Revenue based on approximate global wholesale crude oil prices — use your local market price for accurate planning.

Complete Yield Reference Table

Oil Seed	Oil Content (%)	Cold Press Yield (%)	Hot Press Yield (%)	Protein in Cake (%)	Crude Oil Price ($/T)
Soybean	17–19%	Not recommended	15–17%	44–48%	$750–950
Sunflower	38–48%	25–32%	35–43%	28–35%	$900–1,100
Groundnut / Peanut	45–53%	29–37%	42–50%	45–55%	$1,000–1,300
Sesame	45–55%	30–38%	42–52%	42–50%	$1,200–1,800
Palm Kernel	45–55%	30–38%	42–52%	14–18%	$650–850
Cottonseed	18–25%	Not recommended	16–22%	36–44%	$600–800
Rapeseed / Canola	38–46%	25–32%	35–43%	32–38%	$850–1,050
Corn Germ	45–55%	30–38%	42–52%	18–22%	$900–1,100
Copra / Coconut	60–70%	40–48%	57–65%	18–24%	$800–1,100

Key Factors That Affect Your Actual Yield

Moisture content: Optimal 8–12% at time of pressing. Too wet → press slips, yield drops. Too dry → cracking, dust losses.
Pre-heating temperature: For hot pressing, conditioning at 80–110°C improves oil cell rupture. Underconditioned seeds give 5–10% lower yield.
Press wear condition: Worn press screws and cage bars reduce pressure and yield — monitor residual oil in cake as wear indicator.
Seed variety: High-oleic sunflower has different pressing characteristics than standard variety despite similar oil content.

Quality ⏱ 5 min read Beginner

Crude Oil vs Refined Oil Explained

What's Inside Crude Oil?

Crude oil — the direct output of pressing or solvent extraction — is not suitable for consumer retail without refining in most markets. It contains a range of natural compounds that affect flavour, colour, stability, and safety:

Free Fatty Acids (FFA): 1–5% depending on seed quality and storage. Causes rancid taste above 0.5%.
Phospholipids (gums): 50–2,000 ppm. Soybean crude typically 500–2,000 ppm — causes oil to go cloudy and haze in refined oil.
Pigments: Carotenoids (yellow-orange) and chlorophyll (green) — affect colour and retail appeal.
Peroxides and oxidation products: Reduce shelf life and create off-flavours.
Odour compounds: Aldehydes, ketones — responsible for "raw" or "beany" smell.
Moisture and impurities: Sediment, fine seed particles from pressing.

What Each Refining Stage Removes

Degumming: Removes phospholipids. Crude 500–2,000 ppm → degummed oil <50 ppm. Essential for soybean, rapeseed, sunflower.
Neutralising (Deacidification): Removes FFA using NaOH (chemical) or steam stripping (physical). Crude 1–5% FFA → neutralised oil 0.05–0.1% FFA.
Bleaching: Removes colour pigments, oxidation products, trace metals. Also reduces aflatoxins by 40–70%.
Deodorising: Steam stripping at 220–260°C under vacuum removes volatile odour compounds, residual FFA, and peroxides. Produces the neutral-flavour oil consumers expect.

Parameter	Crude Oil	Refined Oil	Premium Refined
FFA (%)	1–5%	0.05–0.1%	<0.05%
Colour (Lovibond)	Dark yellow/green	Light yellow	Pale/water-white
Phospholipids (ppm)	500–2,000	<5	<1
Peroxide Value (meq/kg)	5–15	<1	<0.5
Smoke point	160–180°C	200–220°C	220–240°C
Shelf life	3–6 months	12–18 months	18–24 months

When Crude Oil Is Acceptable

Crude oil can be sold directly in certain contexts: local traditional markets where consumers are accustomed to unrefined oil (common in West Africa and parts of Asia), short-supply-chain use where oil moves from producer to consumer within days, and sales to downstream refineries where you act as a raw material supplier.

When Refining Is Essential

Retail shelves in most markets require refined oil. Export to EU, US, or Gulf markets requires refined quality. Competing with imported palm oil (already refined) requires matching quality. Food manufacturing customers require refined oil with standardised specifications.

Quality Control ⏱ 7 min read Intermediate

Oil Quality Parameters: FFA, Peroxide Value, Moisture Explained

Free Fatty Acids (FFA)

What it measures: Oil degradation and rancidity. FFA are released when triglycerides break down — caused by enzymatic hydrolysis (lipase activity from damaged/wet seeds), microbial action, or heat during processing. High FFA = old or damaged seeds, poor storage, or poor pressing practice.

Test method: Titration with KOH (AOCS Official Method Ca 5a-40). Expressed as % FFA (as oleic acid) or mg KOH/g oil.

International standards:

EU Regulation (EC) 1019/2002 for olive oil: <0.8% (extra virgin), <2.0% (virgin)
Codex STAN 210 refined oils: ≤0.6 mg KOH/g (≈0.3% as oleic)
India FSSAI: <0.5% FFA for refined vegetable oils
Most refined vegetable oil specifications: <0.1% (best practice)

Peroxide Value (PV)

What it measures: Primary oxidation — the freshness of the oil. Hydroperoxides are the first products of oxidative rancidity. High PV means the oil is oxidising — approaching rancid flavour, reduced shelf life, and nutritional degradation.

Standard ranges by oil stage:

Fresh crude oil: 5–10 meq/kg (acceptable)
Properly refined oil: <1 meq/kg
Oil approaching rancidity: >20 meq/kg
Codex STAN 210 limit for refined oils: ≤10 meq/kg

What causes high PV: Light exposure during storage, heat during processing, contact with metal surfaces (Cu, Fe are oxidation catalysts), prolonged storage of crude oil before refining, air headspace in storage tanks.

Moisture & Volatile Matter

Standard: ISO 662:2016. Expressed as percentage by weight. Refined oil standard: <0.1% moisture (most specifications <0.05%). High moisture causes hydrolytic rancidity (FFA increase), microbial growth, and poor shelf life.

Lovibond Colour

Measured using AOCS Official Method Cc 13b-45. Reports Yellow and Red Lovibond units in a standardised optical cell (1/4 inch or 1 inch). Typical refined oil targets: 10Y/1.0R (premium); 20Y/2.0R (standard refined). Bleaching earth dosage and contact time are the primary control variables.

On-Site vs Lab Testing Guide

Test	On-Site Possible?	Equipment Needed	Lab Required For
FFA	Yes	Burette, KOH, phenolphthalein	Official export certification
Peroxide Value	Yes	Iodometric titration kit	Official certification
Moisture	Yes (approximate)	Moisture balance or Karl Fischer	Precise measurement (<0.05%)
Lovibond Colour	Yes	Lovibond Tintometer	Official grading
Aflatoxin	Screening strips only	Lateral flow test strips	Always for export/retail
Fatty acid profile	No	—	Gas chromatography required

Equipment Selection ⏱ 6 min read Intermediate

Batch Refinery vs Continuous Refinery: Which Do You Need?

Batch Refinery (1–30 TPD)

A batch refinery operates five jacketed vessels sequentially: degumming tank, neutralising tank, washing tank, bleaching vessel, and deodoriser. Each batch of oil (1–5 tonnes) is processed through all stages before the next batch begins. Cycle time: 6–8 hours per batch.

Capital cost: $8,000–$35,000 for 1.5T–3T/batch capacity
Labour: 2–3 operators per batch cycle
Flexibility: Easy to switch between oil types between batches — just clean and adjust parameters
Quality: Good but some batch-to-batch variation is normal
Best for: First investment, multiple oil types, <30 TPD, limited capital

Semi-Continuous Refinery (20–50 TPD)

A hybrid design where some stages (degumming, neutralising) run continuously while bleaching and deodorising remain batch. Capital $35,000–$120,000. Provides balance between capital efficiency and throughput. Practical choice for growing operations at 20–50 TPD that plan to scale further.

Continuous Refinery (50+ TPD)

All stages run continuously with inline mixing, centrifugal separation, and a continuous deodoriser (tray-type or packed column). Oil flows continuously through the process with minimal manual intervention.

Capital cost: $120,000–$500,000+ depending on capacity
Labour: 3–4 operators per shift × 3 shifts/day
Per-unit operating cost: 20–30% lower than batch at equivalent capacity
Quality consistency: Superior — continuous process eliminates batch variation
Best for: Established producer, export grade, single-oil-type operation, 50+ TPD

Parameter	Batch	Semi-Continuous	Continuous
Capacity range	1–30 TPD	20–50 TPD	50–500+ TPD
Capital cost	$8K–$35K	$35K–$120K	$120K–$500K+
Operators needed	2–3 / batch	2–3 / shift	3–4 / shift
Per-tonne op. cost	$25–$45/T	$18–$30/T	$12–$20/T
Multi-oil flexibility	High	Medium	Low
Quality consistency	Good	Very Good	Excellent
Payback period	12–24 months	18–30 months	24–48 months
Recommended for	First investment	Growing operation	Established producer

Rule of thumb: Below 20 TPD, batch is almost always the right choice. Above 50 TPD, continuous economics are clearly superior. Between 20–50 TPD, model your specific labour cost versus capital premium — the crossover depends heavily on local wage rates.

Business Guide ⏱ 10 min read Beginner

8 Steps to Start an Edible Oil Processing Business

Starting an oil processing business is achievable in 6–12 months from decision to first oil. Here's the sequence that works — and where first-time investors most commonly go wrong.

1

Choose Your Raw Material

Your oil seed determines everything else. Choose based on local availability (don't depend on imports for your feedstock), consistent year-round supply, and margin. Peanut oil in West Africa, sunflower in Eastern Europe, soybean in South America, sesame in Ethiopia/Sudan — match seed to market reality. Get a laboratory oil content test on your specific seed before making any other decision.

2

Calculate Your Capacity Target

Start with demand, not ambition. Identify your first 3 buyers and their monthly oil requirements. Add 20% capacity buffer. Common first-plant sizes: 3–10 TPD for village/district level, 10–30 TPD for regional, 30–100 TPD for national market ambitions. Setup cost ranges: $50K–$100K for 5–10 TPD, $100K–$300K for 10–30 TPD, $300K–$500K+ for 30–100 TPD.

3

Select Your Output Grade

Crude unrefined, refined bulk, or refined bottled — each has a different capital requirement and margin profile. Selling refined bottled oil to consumers gives highest margin but requires refinery capital and packaging line. Selling crude to a local refinery requires least capital but lowest margin. Most first-time investors start with refined bulk and add bottling in year 2.

4

Assess Your Site

Minimum requirements: 200–500 m² covered production space for 5–30 TPD, three-phase power (30–150 kW depending on capacity), water supply (2–5 m³/day for refinery cooling), access road for seed delivery and oil dispatch, and proximity to seed supply. Avoid flooding zones and check zoning permits before committing to a site.

5

Get Your Free Plant Design

Any serious equipment supplier (including SinoOil) will provide a free plant layout, equipment list, and process flow diagram based on your capacity and seed type — typically within 48 hours of your inquiry. This design becomes your blueprint for civil works and utility planning. Get designs from 2–3 suppliers and compare not just price but equipment specifications and after-sales support terms.

6

Secure Regulatory Approvals

Start the regulatory process early — it takes 3–6 months in most developing markets. Required approvals typically include: food business license (NAFDAC in Nigeria, KEBS in Kenya, FSSAI in India), environmental impact assessment/clearance, company registration, and import permit for equipment. Don't wait for equipment to arrive to start the regulatory process.

7

Order Equipment & Prepare Site

Manufacturing takes 30–60 days. Use this time in parallel to complete civil works — equipment foundations, electrical installation, and utility connections. A common mistake is waiting for equipment to arrive before starting civil works — this adds 2–3 months unnecessarily.

8

Commission & Launch Production

Installation: 2–4 weeks with supplier technician. Commissioning: 1–2 weeks of test runs to optimise settings. Plan for 2–4 weeks of below-capacity output during initial tuning — this is normal. First-year common mistakes: running at 100% capacity immediately (leads to equipment damage), skipping quality testing (leads to market rejections), and underestimating seed supply chain continuity.

Market Economics ⏱ 6 min read Intermediate

Local Oil Processing vs Importing: Economics for Developing Markets

The Market Opportunity

Africa's edible oil market was valued at $24.76 billion in 2025 and is projected to reach $30.85 billion by 2030 at a 5.11% CAGR. Nigeria alone posts a 6.78% CAGR, driven by a 200M+ population, over 50% urbanisation rate, and rapidly expanding middle class. The overwhelming majority of this market is currently served by imported refined palm oil — primarily from Indonesia and Malaysia.

This creates a structural opportunity: every percentage point of import substitution by local producers represents hundreds of millions of dollars in domestic production value.

The Economics of Local Processing

At 20+ TPD scale with locally-sourced raw material, domestic processors can achieve 30–45% lower delivered cost compared to imported refined oil. The savings come from:

No import duty (typically 5–35% on refined oil in developing markets)
No international freight ($80–150/tonne for refined oil)
No currency exchange margin on USD-denominated purchases
Fresher product (weeks vs months of supply chain transit time)
AfCFTA tariff advantages for intra-African trade

Break-Even Analysis Framework

Local processing break-even: Local oil production cost per litre = (Seed cost + Processing cost + Overhead) ÷ Oil output litres

If local production cost < imported refined oil price — local processing wins economically. If local production cost > imported price — you need scale or lower seed cost to compete.

Case Reference: Nigeria 30 TPD Soybean Plant

A 30 TPD soybean processing plant in Nigeria (our installation, 2023) achieves the following economics: raw soybean at NGN 280/kg local price, producing soy oil at a landed cost approximately 40% below equivalent imported refined soy oil. The critical variable: local soybean availability. Plants within 200 km of the Benue/Kogi soybean belt have reliable feedstock; those importing seed from the south face higher costs that erode the advantage.

Market	CAGR (2024–2030)	Import Dependency	Local Processing Advantage
Nigeria	6.78%	High (palm oil)	Strong (local soybean/groundnut)
Ethiopia	5.8%	Medium	Strong (sesame, sunflower)
Kenya	4.9%	High	Moderate (sunflower only)
Ghana	5.2%	High	Moderate (palm, groundnut)
Bangladesh	4.5%	Very high	Limited (mustard seed only)
Indonesia	3.1%	Low (exporter)	Very strong (palm)

Compliance ⏱ 8 min read Advanced

Oil Plant Certifications & Regulatory Compliance Guide

International Quality & Food Safety

ISO 22000:2018: Food safety management system with HACCP integration — required or strongly preferred by most food manufacturers and export buyers.
FSSC 22000: GFSI-recognised certification based on ISO 22000 — required by many European and US retail buyers.
ISO 9001:2015: Quality management system — demonstrates consistent process control. SinoOil machinery is ISO 9001 certified.
ISO 14001:2015: Environmental management — required for operations near water bodies or in environmentally sensitive areas.

Export Market Requirements

EU EUDR (effective December 2025): EU Deforestation Regulation — operators selling palm oil, soy, or derived products into EU must prove deforestation-free supply chain with GPS coordinates of production area.
US FDA 21 CFR Part 184: Generally Recognised as Safe (GRAS) requirements for food oils. Aflatoxin limits: total ≤20 ppb (peanut products).
Codex Alimentarius (STAN 210): International standard for named vegetable oils — the baseline for most country-specific regulations.
EU Regulation (EC) 1274/2008: Contaminant limits including mineral oil hydrocarbons (MOSH/MOAH) — increasingly tested for European imports.

Regional Regulatory Bodies

Country / Region	Regulatory Body	Key Requirements
Nigeria	NAFDAC	Product registration, facility inspection, NAFDAC number on label
Kenya	KEBS	KS 65 standard compliance, product certification mark
India	FSSAI	License required, FFA <0.5%, BIS standards for branded oils
Bangladesh	BSTI	BSTI certification mark, licence for food processing
Ghana	FDA Ghana	Product registration, facility certification
East Africa (COMESA)	EAC Standards	EAS 41 edible vegetable oil standard

Aflatoxin — Critical Compliance Issue

Aflatoxin B1 is a carcinogenic mycotoxin produced by Aspergillus fungi in stored grains and oilseeds. It is the most common reason for rejection of African food exports to Europe. Standards:

EU limit (Regulation EC 1881/2006): B1 ≤2 μg/kg in edible oils; total (B1+B2+G1+G2) ≤4 μg/kg
US FDA: ≤20 ppb total aflatoxins in peanut products
Codex: ≤15 μg/kg total in groundnuts

Aflatoxin is controlled primarily at the raw material level — proper seed storage at <13% moisture prevents fungal growth. Bleaching earth in the refinery removes 40–70% of aflatoxin from crude oil but cannot reliably bring contaminated oil to EU standards.

SinoOil Equipment Certifications

All SinoOil machinery is manufactured under ISO 9001:2015 quality management, carries CE marking for EU market compatibility, and is SGS factory-audited. Equipment documentation packages include CE certificates, test reports, and manufacture data records for customs clearance and financing purposes.

Edible Oil Processing Knowledge Base