Potato Flakes Product Specification¶
Code: HJ-TD-PE-03-PK/1-01-D-2025
Prepared by: Mrs Wang
Reviewed by: Mrs Wang
Department in Charge: Quality Control Department
Date: 2025.01.01
Company: 张家口弘基农业科技开发有限责任公司 (Zhangjiakou Hongji Agriculture Technology Development Co., Ltd.)
Short Answer¶
HONGJI Potato Flakes are specified in controlled document HJ-TD-PE-03-PK/1-01-D-2025: moisture ≤ 9.0% (GB 5009.3), ash ≤ 4.0% dry basis (GB 5009.4), reducing sugar ≤ 3.0% (GB 5009.7), blue value ≤ 500 (SB/T 10752 Annex A), rehydration ratio 7.5:1, net weight 20 kg or 25 kg. The controlling standard is SB/T 10752-2012 plus customer requirements, and every shipment is released against a lot-specific COA. Production targets inside these limits — for example 6–8% moisture at the doctor blade — are process values, not the guaranteed limit.
Key facts
- Varieties processed: Atlantic, Shepody, Russet Burbank
- Ingredients: potato 99.5%; mono- and diglycerides (INS 471) ≤ 0.5%; citric acid (INS 330) ≤ 100 ppm
- Allergens: none used in the factory
- Release: annual verification plus per-batch COA
- Method basis: Chinese national standards (GB) with SB/T 10752-2012 for the product
Procurement Considerations¶
What buyers should specify. Product form and grade, moisture limit, particle size expressed as both mesh and aperture, bulk density range, reducing-sugar limit, packaging (net weight per bag and pallet configuration), and the test method your own specification cites.
What to ask a supplier. Which value is the guaranteed specification and which is a typical value; the current version of the controlling product specification; the last COA for the grade you are qualifying; and what happens to the specification if raw-material season changes.
Parameters that matter most. Moisture (shelf life and caking), particle size (mixing, hydration and mouthfeel in your line), reducing sugars (colour after frying or baking), and microbiological limits — evaluated together. Moisture alone is not a quality indicator.
Commonly misunderstood. That mesh and µm are interchangeable; that a COA result is a universal product specification; that a typical value is a guarantee; and that colour after baking can be judged without a reducing-sugar figure.
What to check on the COA. Product and grade, lot number, test method, result against the limit in force for your order, and the release approval.
What can be customised. Particle size (60 / 80 / 100 mesh and customer sieve curves), moisture, bulk density, packaging and pallet format, and blended or private-label formulations — against an agreed specification, not as a substitute for one.
Related documents¶
- Potato Flakes Technical Datasheet
- Technical Data Governance — how these values are classified
- Document Control & Technical Team — version control and controlled copies
- Certificate of Analysis Guide
1. Product Information¶
| Item | Detail |
|---|---|
| Product Name | Potato Flakes |
| Varieties | Atlantic / Shepody / Russet Burbank |
| Reference Standard | SB/T 10752-2012 Potato Flakes and customer requirements |
Material Description: Produced under clean and hygienic conditions, potato flakes are made from fresh potatoes that undergo acceptance, destoning, washing, steam peeling, secondary washing, visual inspection, hydraulic slicing, blanching, cooling, cooking, mashing, drying, flaking & milling, sieving, magnetic separation, weighing, packaging, and metal detection. During processing, the potato cells are kept as intact as possible to retain nutrients, color, aroma, and flavor.
2. Allergens¶
| Allergen Source | Functionality in Raw Material |
|---|---|
| None | The factory does not use allergenic substances |
China's List of 8 Major Food Allergens (GB 23779-2009, GB 7718-2011):
- Cereals containing gluten and their products (wheat, rye, barley, oats, and hybrids)
- Crustaceans and products thereof (e.g., crab, lobster, shrimp)
- Fish and products thereof (e.g., perch, flounder, cod)
- Eggs and products thereof
- Peanuts and products thereof
- Soybeans and products thereof
- Milk and dairy products (including lactose)
- Tree nuts and products thereof (almonds, hazelnuts, walnuts, cashews, pecans, Brazil nuts, pistachios, macadamias)
3. Ingredients¶
| Ingredient | Proportion | Function |
|---|---|---|
| Potato (Atlantic or Shepody) | 99.5% | Base material |
| Mono- and Diglycerides of Fatty Acids (INS 471) | ≤ 0.5% | Emulsifier (added as needed) |
| Citric Acid (INS 330) | ≤ 100 ppm | Acidity regulator (added as needed) |
4. Quality Standards¶
4.1 Sensory Indicators¶
| Item | Requirement |
|---|---|
| Color | Uniform |
| Taste & Aroma | Typical of the product |
| Texture | Dry, loose flakes or powder, free from caking and mold |
| Impurities / Spots | No visible foreign impurities; spots ≤ 50 |
4.2 Physicochemical Indicators¶
| Item | Specification | Method | Frequency |
|---|---|---|---|
| Moisture (%) | ≤ 9.0 | GB 5009.3 | Annual / COA per batch |
| Ash (dry basis, %) | ≤ 4.0 | GB 5009.4 | Annual / COA per batch |
| Reducing Sugar (%) | ≤ 3.0 | GB 5009.7 | Annual / COA per batch |
| Blue Value | ≤ 500 | SB/T 10752 Annex A | Annual / COA per batch |
| Net Weight (kg) | ≥ 25 or ≥ 20 | JJF 1070 | Annual / COA per batch |
4.3 Contaminants¶
| Item | Limit | Method | Frequency |
|---|---|---|---|
| Lead (Pb, mg/kg) | ≤ 0.5 | GB 5009.12 | Annual |
| Total Arsenic (mg/kg) | ≤ 0.5 | GB 5009.11 | Annual |
4.4 Microbiological Indicators¶
| Item | Limit | Method |
|---|---|---|
| Total Plate Count (TPC) | ≤ 10,000 CFU/g | ISO 4833-1:2013 |
| Coliforms | ≤ 10 CFU/g | ISO 4832:2006 |
| Yeast & Mould | ≤ 100 CFU/g | ISO 21527-2:2008 |
| Staphylococcus aureus | ≤ 10 CFU/g | ISO 6888-1:2021 |
| Salmonella | Negative / 25 g | ISO 6579-1:2017 |
| Listeria monocytogenes | Negative / 25 g | ISO 11290-1:2017 |
| Aerobic spore formers | ≤ 500 CFU/g | ISO 7933:2004 |
The declared microbiological limits are those of the technical datasheets (ISO methods). Test frequency: every batch, with third-party verification twice per year.
5. Testing Frequency¶
5.1 Microbiological Tests¶
- Total Plate Count: ISO 4833-1 — Each batch (third-party twice per year)
- Coliforms: ISO 4832 — Each batch (third-party twice per year)
5.2 Food Safety Indicators¶
- Lead (Pb): GB 5009.12 — Annual
- Cadmium (Cd): GB 5009.15 — Annual
- Mercury (Hg): GB 5009.17 — Annual
- Total Arsenic (As): GB 5009.11 — Annual
- Chromium (Cr): GB 5009.123 — Annual
- Sulfur Dioxide Residues: GB 5009.34 — Annual
- Pesticide Residues: GB 2763-2021 — Annual
5.3 Physicochemical Indicators¶
- Moisture: GB 5009.3 — Hourly (≤25 kg packs)
- Ash (dry basis): GB 5009.4 — Each batch
- Defects (#40 sieve): FL 70-32 — Hourly (≤25 kg packs)
- Reducing Sugar: GB/T 5009.7 — Each shift
- Color: Visual — Hourly (≤25 kg packs)
- Blue Value: SB/T 10752 Annex A — Each batch
6. Packaging Standards¶
- 25 kg / 20 kg / 18 kg bags.
- Bags are sealed with special rubber bands, folded 4–6 cm, and stitched using portable sealing machines.
- Bright-colored bands, threads, or ropes are recommended to distinguish from product color.
7. Storage and Shipment¶
7.1 Storage¶
- Store on pallets, in a cool, dry, shaded, and ventilated place at ambient temperature.
- Do not stack more than two pallet loads.
- Shelf life: 24 months (unopened, under proper conditions).
7.2 Shipment Requirements¶
- Only qualified products shipped, following FIFO principle. Handle gently, avoid stepping on bags, and stack properly to prevent damage.
- Clean truck beds before loading. Ensure packaging is intact to prevent moisture damage during transport.
- During loading, no stepping on products. Workers must wear disposable shoe covers. Outer bags must be free from dust, footprints, sweat marks, rodent damage, etc.
This archive is part of the Hongji Agriculture Technical Documentation Series. For more information about our vertically integrated potato supply chain — from seed breeding and cultivation to processing and global export — visit our official B2B website: https://hjpotatoflakes.com
References¶
- National Health Commission of China. GB National Food Safety Standards — contaminant limits and test methods.
- 张家口弘基农业科技开发有限责任公司 (Zhangjiakou Hongji Agriculture Technology Development Co., Ltd.) 2026. "Potato Flakes Product Specification." Hongji Agriculture Knowledge Center.