
About Hongji Agriculture
China’s Vertically Integrated Potato Flakes Manufacturer — From Seed to Shipment
Hongji Agriculture Technology Co., Ltd. (弘基农业) is a Chinese dehydrated potato ingredient manufacturer based in Zhangjiakou, Hebei Province. We operate a fully integrated supply chain spanning seed breeding, contract farming, controlled-atmosphere storage, industrial processing, quality control, and global export — all managed under one company.
Unlike ingredient traders who buy and resell, we grow and process our own raw materials. This vertical integration gives our B2B customers consistent quality, stable year-round supply, complete traceability, and flexible customization that third-party suppliers cannot match.
Company at a Glance

| Attribute | Value |
|---|---|
| Company Name | Hongji Agriculture Technology Co., Ltd. (张家口弘基农业科技开发有限责任公司) |
| Trade Name | Hongji Agriculture / 弘基农业 |
| Headquarters | Qiaodong District, Zhangjiakou City, Hebei Province, China |
| Processing Plant | Zhangjiakou, Hebei Province |
| Business Model | Vertically integrated manufacturer — seed to shipment |
| Annual Fresh Potato Processing | 50,000+ metric tons |
| Raw Material Storage Capacity | 120,000 metric tons (18 controlled-atmosphere cells) |
| Primary Potato Varieties | Atlantic, Shepody, Russet Burbank |
| Growing Regions | Hebei Province & Inner Mongolia |
| Product Categories | Potato flakes, milled potato flakes (potato powder), customized ingredients |
| Target Markets | Global B2B — pet food, bakery, snacks, soups, prepared meals, meat processing |
| Certifications | ISO 22000, FSSC 22000, HACCP, Halal, Kosher, Organic (EU/USDA), GlobalG.A.P. |
| Phone | +86 400-633-0616 |
| Website | hjpotatoflakes.com |
What Makes Hongji Different
| Question | Answer |
|---|---|
| Manufacturer or trader? | Manufacturer. We own the farms, storage facilities, and processing plant — not a trading company |
| What’s your specialty? | Potato flakes and potato powder for industrial food manufacturing — B2B only |
| Where does your raw material come from? | Our own farms — contract farming of Atlantic, Shepody, and Russet Burbank varieties in Hebei and Inner Mongolia |
| How much can you process? | 50,000+ metric tons of fresh potatoes annually, with 120,000 MT of controlled-atmosphere storage for year-round production |
| What certifications? | ISO 22000, FSSC 22000, HACCP, Halal, Kosher, Organic (EU/USDA), GlobalG.A.P. |
| Do you customize? | Yes — particle size, moisture, color, bulk density, functional properties, packaging, OEM/private label |
| Do you export? | Yes — we supply food manufacturers globally with full export documentation and logistics support |
Our Model — Full Vertical Integration
Most ingredient suppliers operate in just one segment of the supply chain. Hongji Agriculture controls the entire chain — from seed breeding to final export — in a single, auditable system.
Seed Breeding & Variety Selection
↓
Contract Farming (Hebei & Inner Mongolia)
↓
Harvest & Quality Grading
↓
Controlled-Atmosphere Storage (120,000 MT)
↓
Processing — Washing → Cooking → Drum Drying → Milling
↓
Quality Control — Physical, Chemical, Microbiological
↓
Packaging — Industrial Bulk & Custom Formats
↓
Export Documentation & Global LogisticsWhy Vertical Integration Matters for B2B Buyers
| Supply Chain Stage | Trader Model | Hongji Model |
|---|---|---|
| Raw material source | Buys potatoes on the spot market | Own farms + contract farming — Atlantic, Shepody, Russet Burbank |
| Quality consistency | Varies by raw material source | Controlled variety selection, standardized cultivation, field-level QC |
| Year-round supply | Seasonal gaps, limited storage | 120,000 MT cold storage — 7–9 months of post-harvest supply |
| Traceability | Limited to supplier records | Batch-level traceability from seed lot to final shipment |
| Customization | Standard products only | Particle size, moisture, color, bulk density — engineered to your specs |
| Food safety | Relies on supplier certifications | In-house FSSC 22000 / ISO 22000 / HACCP — auditable at every stage |
Processing Technology — From Raw Potato to Finished Ingredient
Our Zhangjiakou processing plant operates a fully integrated production line with an annual capacity exceeding 50,000 metric tons of fresh potato input.
Complete Manufacturing Process
Stage | Operation | Key Parameters |
|---|---|---|
| 1 | Receiving & Inspection | Tuber size ≥ 50 mm, dry matter ≥ 20%, reducing sugars ≤ 0.25%, defects < 3% |
| 2 | Dry Cleaning & Destoning | Roller-grate cleaner (30–50 MT/hr) + fluidized-bed air separator |
| 3 | Washing & Rinsing | Multi-stage counterflow drum washer, 3–5 bar spray, 15–25°C water only |
| 4 | Steam Peeling | High-pressure steam — minimal flesh loss |
| 5 | Inspection & Trimming | Manual + automated inspection for defects |
| 6 | Slicing | 1.2–1.8 cm uniform thickness |
| 7 | Pre-Cooking | 65–75°C, 15–25 minutes |
| 8 | Cooling | 15–25°C, 10–15 minutes |
| 9 | Steam Cooking | 95–100°C, 20–35 minutes — complete starch gelatinization |
| 10 | Mashing & Additive Dosing | Uniform mash consistency + controlled emulsifier/antioxidant addition |
| 11 | Drum Drying | Single-drum dryer, controlled speed and temperature |
| 12 | Milling & Screening | 8–40 mesh for flakes; 60 mesh for powder |
| 13 | Metal Detection | In-line magnetic separation + metal detector |
| 14 | Packaging | N₂-flushed moisture-proof packaging |
Technology Highlights
- Drum drying preserves natural potato flavor, color, and rehydration performance
- Fine milling (60 mesh) for potato powder — controlled particle size distribution
- N₂ flushing extends shelf life by preventing oxidation
- In-line browning control — managing enzymatic browning (PPO) and Maillard reactions
- Moisture control — NIR (Near-Infrared) sensing for real-time moisture monitoring
Quality Control — Multi-Stage, Independently Managed
Hongji’s Quality Assurance function operates independently of production and reports directly to the Chief Operating Officer — ensuring impartial quality decisions at every level.
QA Organizational Structure
| Level | Function | Responsibility |
|---|---|---|
| L1 | COO | Quality policy, resource allocation, strategic QMS decisions |
| L2 | Director of Quality Management | QMS design, certification, internal audit, regulatory compliance |
| L3 | QA Manager — Raw Materials | Incoming potato inspection, field quality monitoring, supplier rating |
| L3 | QA Manager — Processing | In-process QC, CCP monitoring, HACCP plan execution |
| L3 | QA Manager — Finished Products | Final release, laboratory management, COA issuance |
| L3 | QA Manager — Traceability | Batch traceability, mock recall coordination, regulatory filings |
QC Checkpoints
| Stage | What We Test | Method |
|---|---|---|
| Raw Potato Receiving | Tuber size, dry matter, reducing sugars, defects, soil content | Caliper, underwater weight, DNS colorimetric, visual inspection |
| In-Process | Slice thickness, mash temperature, dryer parameters, moisture | Real-time sensors + shift-based sampling |
| Finished Product | Moisture, particle size, color, bulk density, rehydration, viscosity | AOAC methods, in-house validated protocols |
| Microbiological | TPC, coliforms, E. coli, Salmonella, yeast & mold, Bacillus cereus | ISO 4833, ISO 4832, ISO 6579, ISO 7954 |
| Pre-Shipment | COA review, packaging integrity, labeling verification | Per customer specification |
Testing Equipment
- NIR moisture analyzers (in-line and bench-top)
- Laser particle size analyzers
- Spectrophotometers (color measurement — CIE Lab*)
- Texture analyzers (viscosity, gel strength)
- Microbiological laboratory (BSL-2)
- HPLC for chemical residue analysis
- Metal detectors (ferrous, non-ferrous, stainless steel)
Frequently Asked Questions
1. Is Hongji Agriculture a manufacturer or a trading company?
We are a manufacturer. Hongji Agriculture Technology Co., Ltd. owns and operates its own farms, storage facilities, and processing plant in Zhangjiakou, Hebei Province, China. We are not a trading company — we grow and process our own raw materials through a fully integrated supply chain.
2. Where does your raw material come from?
Our own farms. Through contract farming in Hebei Province and Inner Mongolia, we grow processing-grade potato varieties — primarily Atlantic, Shepody, and Russet Burbank — under standardized cultivation protocols. This ensures consistent quality and complete traceability from seed lot to final shipment.
3. What is the difference between potato flakes and potato powder?
Potato flakes are the primary product — drum-dried, flaked, and screened to 0.25–2.0 mm. They offer fast rehydration and excellent texture for instant mash, bakery, and meat applications.
Potato powder (also called milled potato flakes) is produced by further grinding flakes to ≤ 250 μm (60 mesh). It offers superior dispersion and blending performance for dry mixes, soup powders, seasonings, and baby food.
Both products come from the same potatoes and the same production line — the difference is the final milling step.
4. What certifications does Hongji Agriculture hold?
- FSSC 22000 — GFSI-benchmarked food safety certification
- ISO 22000 — Food safety management systems
- HACCP — Hazard analysis and critical control points
- Halal — Islamic dietary compliance
- Kosher — Jewish dietary compliance
- Organic (EU/USDA) — Certified organic farming and processing
- GlobalG.A.P. — Good agricultural practice certification
5. What is your annual production capacity?
50,000+ metric tons of fresh potato processing annually, supported by 120,000 metric tons of controlled-atmosphere storage across 18 storage cells. This enables year-round production — we process potatoes 12 months a year, not just during harvest season.
6. Can you customize potato flakes for my specific application?
Yes. We offer customization of particle size, moisture content, color profile, bulk density, rehydration ratio, and functional properties. Our technical team works with you to understand your application requirements and recommend the appropriate specifications. OEM and private label manufacturing is available.
7. Do you export internationally?
Yes. We supply food manufacturers in multiple international markets with full export documentation support, appropriate packaging for sea freight, and logistics coordination.
8. Can I visit your factory?
Yes. We welcome factory visits from serious buyers. A visit allows you to inspect our farming operations, storage facilities, processing lines, quality control laboratory, and packaging areas. Contact our sales team to arrange an appointment.
9. What packaging options are available?
Standard packaging is 25 kg food-grade multi-wall bags or 500 kg supersacks. Custom packaging formats can be developed for OEM projects or long-term supply programs. All packaging is N₂-flushed and moisture-proof for extended shelf life.
10. Can potato powder replace potato flakes in my application?
In many applications, yes. However, the optimal choice depends on your processing equipment, formulation, and desired finished product characteristics. Potato powder is generally preferred for dry blends, seasonings, and applications requiring smooth texture, while potato flakes excel in applications where visible potato pieces or rapid rehydration are desired. Our technical team can recommend the best product for your specific needs.
Contact Hongji Agriculture
| Channel | Detail |
|---|---|
| Company | Hongji Agriculture Technology Co., Ltd. (张家口弘基农业科技开发有限责任公司) |
| Head Office | 3# Building, High Tech New Town, North Silicon Valley, Qiaodong District, Zhangjiakou City, Hebei Province, China |
| Phone | +86 400-633-0616 |
| Website | hjpotatoflakes.com |
| Technical Documentation | docs.hjpotatoflakes.com |
