0. Executive Summary
Judgment axis | detail |
| Item Identity | Water chestnut is an aquatic edible crop that utilizes the underground corm of Eleocharis dulcis of the Cyperaceae family. |
| Basic registration range | Separate fresh bulbs, washed and peeled water chestnuts, cut products, refrigerated and frozen products, canned and bottled products, powders and starch raw materials, and HMR and processed products for the food service industry. |
| Separation of similar items | It must be managed as a separate Species·Product from water caltrop, the fruit of Trapa spp. |
| Edible parts | A corm formed in the underground part. It is unrelated to the nuts of a common chestnut tree. |
| Harvesting principle | Check the maturity, size, appearance, decay, damage, soil, and moisture status of the buds, and classify the production location and harvest date into Lot. |
| Quality Core | Check the species, diameter specifications, appearance, damage/deterioration, foreign matter/soil, pesticide residues, microorganisms, heavy metals, and history of washing, peeling, and heating. |
| Processing core | Fresh chestnuts, peeled chestnuts, frozen chestnuts, canned chestnuts, powder, and starch are managed as different products. |
| Domestic statistics | The latest government-approved statistics on the exclusive domestic cultivation area and production volume of water chestnuts are not available in v1.0 → To be entered later after verification of official raw data. |
| Import and Trade | Since the HS code may vary depending on the product type, fresh, frozen, prepared, and canned goods are separated and verified using raw data from the Korea Customs Service. |
| Customers | Chinese & Asian dining, HMR, frozen foods, canned goods, food ingredients, OEM & PB, import and distribution companies |
| Operational direction | Connects Species–Origin–Harvest–Washing/Peeling–Freezing/Heating/Canning–Quality Verification–Buyer RFQ–Repurchase data. |
The Australian government's export and quarantine data classifies Eleocharis dulcis as a vegetable called Chinese water chestnut and manages its fresh use separately. ( Micor ) The University of Illinois Extension also explains that water chestnut is not a nut but an underground corm of sedge plants . ( Illinois Extension )
1. Plant Identity & Product Master
division | Registration details |
| Korean name | water chestnut |
| Recommended weapon name | Chinese water chestnut |
| English name | Chinese water chestnut |
| Representative scientific name | Eleocharis dulcis (Burm.f.) Trin. ex Hensch. |
| classification | Poales · Cyperaceae · Eleocharis |
| Growth type | Perennial, tuberous aquatic/wetland herbaceous plant |
| Edible parts | underground view (corm) |
| Exclusion/Separate Management | Stems, leaves, roots, propagation bulbs, and raw materials unsuitable for consumption |
| Major harvesting stages | Harvested after bulb enlargement and maturation |
| Product form | Fresh bulbs, washed products, peeled products, cut products, frozen products, canned products, powder, starch |
| Processing stage | Harvesting, washing, sorting, peeling, cutting, blanching, freezing, heating, filling, sterilization, grinding |
| Basic use | Vegetables · Chinese · Asian cuisine · HMR · Frozen foods · Canned goods · Food ingredients |
| Separation of similar items | Trapa spp. is a separate entity from water caltrop, water chestnuts, lotus roots, taro, etc. |
Product Master
Product Master | Key Management Standards |
| Breeding bud | Species · Variety/Line · Origin · Germination Status |
| raw water chestnut | Scientific name, origin, harvest date, size, appearance, soil, decay |
| Washing water chestnut | Raw Material Lot · Washing Water · Washing Date · Foreign Matter |
| peeling water chestnut | Raw Material Lot · Peeling · Browning · Microorganisms · Storage |
| Cutting water chestnut | Cut Size · Raw Material Lot · Refrigeration Conditions |
| Blanching water chestnuts | Time, temperature, cooling, texture |
| frozen water chestnuts | Pretreatment · Freezing Date · Storage Temperature · Thawing Quality |
| Canned water chestnuts | Filling amount · Solid amount · Liquid · Heat treatment · Packaging |
| Canned water chestnuts | Contents · Heat Treatment · Sealing |
| water chestnut powder | Raw Material Lot · Dryness · Particle Size · Moisture |
| water chestnut starch | Raw Material Species · Extraction · Moisture · Particle Size · Purity |
| HMR ingredients | Cutting dimensions, cooking properties, packaging, and shelf life |
| OEM/PB products | Prescription · Country of Origin · Labeling · MOQ · Delivery Time · Claims |
2. Product Classification & Use Segmentation
Classification criteria | Subdivision type | Management principles |
| plant species | Eleocharis dulcis | Water chestnut with unconfirmed scientific name is not definitively registered. |
| Confusion Species | Trapa spp. | Separate Entity as Water Caltrop |
| Edible parts | Corm | Not registered as fruit, seed, or nut |
| Raw material stage | Biological · Washing · Peeling · Cutting | Create Lot per Product |
| Preservation form | Fresh, Chilled, Frozen | Separation of temperature and storage conditions |
| Processing form | Blanched·Canned·Powder·Starch | Product separation by process |
| Final use | Foodservice, HMR, frozen foods, canned goods, food ingredients | Buyer Spec Separation |
| origin | Domestic test cultivation, imported raw materials, and imported processed products | Separation of procurement channels |
| Transaction type | Raw Materials · Processed Raw Materials · Regular Supply · OEM · PB · Import RFQ | Separation of contract conditions |
Even in Australian government data reflecting Codex-related crop classifications, the Chinese water chestnut – *Eleocharis dulcis* – is classified as an independent commodity under Aquatic root and tuber vegetables . ( APVMA )
3. Production, Harvest & Post-harvest
step | Essential Dataset | Management purpose |
| Production and procurement plans | Species · Origin · Producer · Buyer Use | Securing raw materials |
| Preparation of breeding materials | View Lot · Quality · Origin | Identity |
| Food ingredients | Planting date, cultivation site, and field | Production tracking |
| Water level and moisture management | Cultivation environment, water depth, and irrigation | Growth management |
| Growth | Stem, bulb formation, and growth status | Harvest forecasting |
| rising | Temperature, Precipitation, Frost | Production Risk |
| dispute | Materials, Dates, and Input Quantities | Production Management |
| pests | History of occurrence and control | Quality and Safety |
| Orifice | Size and Maturity | Harvest judgment |
| harvest | Harvest date, quantity, specifications | Harvest Lot |
| soil removal | Removal of foreign matter and soil | Raw material purification |
| Selection | Size, damage, and decay | Grade |
| purifying | Water and washing methods | Hygiene management |
| save | Temperature, period, spoilage | Fresh Quality |
| peeling | Peeling rate/loss rate | Processing Yield |
| cutting | Cut Size | Buyer Spec |
| Blanching | Time and temperature | Processing quality |
| cooling | Cooling conditions | Quality stability |
| freezing | freezing conditions | Frozen Product |
| canned goods | Filling, Heat Treatment, Sealing | Shelf-stable Product |
| Drying and grinding | Moisture content and particle size | Powder |
| Starch separation | Crushing, washing, separation, and drying | Starch Product |
| Packaging and shipping | Pack·Lot·Buyer | Traceability |
4. Quality Specification & Lot Management
Quality items | raw water chestnut | Peeled and severed parts | Frozen and canned goods | Powder and starch | Public rating |
| Species · Origin | core | core | core | core | Verified |
| Producer/Harvest Date | core | succession | succession | succession | Verified/NDA |
| Bore size | core | importance | importance | Raw material inheritance | Verified |
| Appearance and color | core | core | importance | importance | Verified |
| soil and foreign matter | core | core | core | core | Verified/NDA |
| Damage/Deterioration | core | core | core | Raw material inspection | Verified/NDA |
| Peeling | Not applicable | core | importance | Not applicable | Verified |
| browning | Not applicable | core | importance | By product | Verified |
| texture | importance | core | core | Not applicable | Verified |
| moisture | importance | importance | By product | core | Verified |
| Island | Not applicable | Not applicable | Not applicable | core | Verified |
| pesticide residues | core | succession | succession | succession | NDA |
| microorganism | necessary | core | core | core | NDA |
| heavy metals | necessary | necessary | necessary | necessary | NDA |
| Washing and water | core | succession | succession | succession | NDA |
| Blanching and heating | Not applicable | By product | core | By product | NDA |
| Packaging and sealing | importance | core | core | core | Verified/NDA |
| Storage conditions | core | core | core | core | Verified/NDA |
| Expiration date | By product | By product | core | By product | Verified |
| Returns and Claims | record | record | record | record | NDA |
Lot Master Required Field
Lot ID · Item Name · Scientific Name · Country of Origin/Cultivation Area · Producer/Importer · Breeding Corm Lot · Planting Date · Harvest Date · Edible Part (corm) · Corm Size/Weight/Appearance · Soil/Damage/Spoilage · Pesticide Use History · Pesticide Residue/Microorganism/Heavy Metal Test Report · Washing History · Raw Material Lot · Skinning/Cutting/Blanching/Cooling/Freezing/Heating/Canning/Drying/Grinding History · Packaging Date · Best Before Date · Shipper · Returns/Claims · Repurchase
5. Korea Market & Demand Structure
Domestic market indicators | treatment |
| Domestic cultivation area | Input after official verification of raw data |
| Domestic production volume | Input after official verification of raw data |
| Production volume by region | Input after official verification of raw data |
| Domestic consumption | Input after official verification of raw data |
| Import volume | Input after HS verification for each product |
| Revenue | Input after verifying official raw data from the Korea Customs Service |
| Average customs clearance unit price | Calculated as Value ÷ Weight of the same HS |
| Major importing countries | Verification of raw data by HS and product type |
Customers | Purchase criteria | Cooperation opportunities |
| Fresh vegetable import and distribution company | Species · Origin · Size · Freshness | Fresh RFQ |
| Chinese food ingredient supplier | Peeling, cutting, texture, packaging | B2B Regular Supply |
| Chinese restaurant · Hotel | Crunch texture · Specifications · Delivery time | Foodservice |
| Asian-style restaurant | Product shape and cutting specifications | Foodservice ingredients |
| frozen food companies | Pre-processing, freezing, and cooking properties | Frozen Ingredient |
| HMR companies | Texture and microorganisms after cutting and cooking | HMR |
| Canned food manufacturers and importers | Solid content, size, and heat treatment | Canned Product |
| food ingredient company | Powder, Starch, Ingredient Specifications | Ingredient |
| food service companies | Safety, Standard Specifications, Delivery Time | Pilot Supply |
| OEM·PB | Product Concept · Packaging · MOQ | Private Label |
| Research Institute | Domestic cultivation suitability and processing suitability | Demonstration and R&D |
6. Trade & Supply-chain Intelligence
step | Key variables | Operational judgment |
| Production and Procurement | Species · Country of Origin · Cultivation Area | Identity verification |
| harvest | Corm specifications and harvest date | Harvest Grade |
| Origin sorting | Size, damage, and decay | Raw material quality |
| Washing and peeling | Hygiene, Yield, Browning | Fresh Processing |
| Refrigeration/Freezing | Temperature · Delivery Time | Cold Chain |
| canned goods | Filling, Heat Treatment, Sealing | Shelf-stable |
| Powder and starch | Raw Material Species · Moisture · Particle Size | Ingredient |
| Import and Customs Clearance | HS · Product Type · Country of Origin · Amount · Quantity | Trade |
| Domestic distribution | Foodservice, HMR, Retail, Industrial | Demand |
| RFQ | Shape · Specifications · MOQ · Packaging · Delivery Time | Buyer Matching |
| Repurchase | Quality deviation, claims, delivery time | Supplier Evaluation |
7. Processing, By-products & PRP Intelligence
Products and processes | Key conditions | RFQ conversion |
| raw water chestnut | Species · Origin · Harvest Date · Size | Fresh RFQ |
| Washing water chestnut | Soil, wash water, foreign matter | Foodservice |
| peeling water chestnut | Peeling rate, browning, microorganisms | HMR · Dining Out |
| Cutting water chestnut | Cut Size · Texture | HMR |
| Blanching products | Time, Temperature, and Tissue | Frozen RFQ |
| frozen water chestnuts | Texture after freezing and thawing | Frozen Food RFQ |
| canned goods | Solid content, size, and heat treatment | Retail/Foodservice |
| Canned food | Filling, sealing, and expiration date | PB |
| water chestnut powder | Moisture, particle size, color | food materials |
| water chestnut starch | Raw materials, extraction, moisture, particle size | Starch RFQ |
| HMR ingredients | Cutting, Cookability, Packaging | HMR |
| by-product | Shells and cutting residues | Verification of feed, compost, and biomaterials |
| Non-commercial items | Substandard appearance | Review of processing conversion after safety verification |
PRP — Product Research Profile
PRP | Key research questions |
| Species PRP | Is the actual ingredient Eleocharis dulcis? |
| Origin PRP | What are the differences in size and texture by country of origin and region? |
| Cultivation PRP | Is it adaptable to domestic paddy and wetland cultivation? |
| Harvest PRP | What is the relationship between bore size, maturity, and marketability? |
| Fresh PRP | What is the change in quality during washing and storage? |
| Peeling PRP | What are the risks regarding peeling yield, browning, and microorganisms? |
| Frozen PRP | Does the crisp texture remain after freezing and thawing? |
| Canning PRP | How do texture, color, and taste change after heat treatment? |
| Starch PRP | What are the starch extraction yield and processing characteristics? |
| Buyer PRP | What are the preferred specifications for dining-out, HMR, and canned goods buyers? |
8. AX Transformation
first of all | Execution item | Performance indicators |
1 | Species·Origin·Producer·Lot must be required | Required value input rate |
2 | Separation of Fresh, Peeled, Frozen, Canned, and Powdered Products | Product misclassification rate |
3 | Linking cultivation site, water level, weather, and harvest data | Production Dataset Completion Rate |
4 | Video AI screening for viewing size, damage, and decay | Selection accuracy |
5 | Automatic recording of washing, peeling, and cutting yields | Processing yield |
6 | Connecting refrigerator/freezer temperature history | Cold-chain compliance rate |
7 | Automatic linking of test reports and lots | Quality document connection rate |
8 | Connecting Imports, Inventory, and Buyer Demand | Inventory turnover |
9 | Product–Buyer AI Match | RFQ Matching Rate |
10 | Buyer Evaluation → Country of Origin/Supplier Score | Repurchase rate |
9. Industry Problem Bank
Problem group | Problem Definition | Required data |
| Confusion of names | Confusion of names: water chestnut, water caltrop | Scientific name · Commodity Name |
| Mixed Species | Confusion between Eleocharis dulcis and Trapa spp. | Species |
| Misidentification of edible parts | Misclassified as nuts or fruits | Edible parts |
| Lack of domestic production statistics | Difficulty in determining actual domestic production scale | Cultivated area and production volume |
| Identification of import statistics | Need to separate HS by product type | HS·Trade |
| Variation by origin | Differences in size, texture, and color | Origin·Quality |
| Fresh storage loss | Management of soil, moisture, and decay is necessary | Storage |
| peeling browning | Color change after processing | Processing |
| Peeling yield variation | Loss differences by size and shape | Yield |
| Microbial Risk | Care required after washing, peeling, and cutting | Microbiology |
| Texture variation | Changes in texture after freezing and canning | Texture |
| Processing Lot Disconnection | Origin/Raw Material Lot Not Inherited in Finished Product | Traceability |
| Lack of Buyer Spec | Differences in specifications between dining out, HMR, and canned goods | RFQ |
| Import–Inventory Discrepancy | Possibility of over- or under-procurement compared to demand | Inventory |
| Repurchase information not reflected | Quality evaluation is not fed back into supplier improvement | Evaluation |
10. Farmer RFQ & Collaboration Model
RFQ Type | Public Registration | Verify/NDA |
| Procurement of breeding bore | Species · Origin · Use | Supplier, Quantity, Price |
| domestic test cultivation | Region · Cultivation Purpose · Product | Farm, Area, Cultivation Records |
| Buy fresh water chestnuts | Species · Country of Origin · Specifications · Season | Quantity · Unit Price · Lot |
| Fresh water chestnuts for sale | Origin, Size, Packaging | Producer, Inventory, Price |
| Washing water chestnut | Specifications, Packaging, Delivery Time | Washing Facilities · Lot |
| peeling water chestnut | Size, Color, Storage | Yield, microorganisms, and price |
| Cutting water chestnut | Cut Size · Packaging | Processing Conditions · MOQ |
| frozen water chestnuts | Specifications and Storage Temperature | COA · Volume · Unit Price |
| Canned water chestnuts | Solid content, specifications, and packaging | Process · MOQ · Unit Price |
| Powder and starch | Moisture, particle size, and uses | Test Report · Price |
| Regular meal supply | Shape, Specifications, Delivery Cycle | Monthly volume and unit price |
| HMR ingredients | Cutting, cooking suitability, packaging | Sample·COA |
| OEM·PB | Product Type, Packaging, Delivery Time | Formula · MOQ · Contract |
| Import RFQ | Species · Origin · Product Form | HS · Customs Clearance · Price |
| Export RFQ | Product Type · Destination Country | Standards, Customs Clearance, Contract |
| Research cooperation | Cultivation, storage, and processing tests | Exam Materials · IP |
11. RFQ Request First
① Need Products & Materials
Companies and institutions seeking necessary products, agricultural products, raw materials, and processed goods register purchasing demands. Registered requests are utilized to review cooperation with potential suppliers and producers based on the RFQ Intelligence Library.
Process:
RFQ Registration → Supplier/Product Review → Collaboration Connection → Future AI Matching
Register
② We are looking for production and manufacturing partners. (Need Suppliers & Manufacturers)
Register a request to find necessary production and supply partners, ranging from farms and producer organizations to processing companies, OEM, ODM, and private label manufacturers.
Process:
RFQ Registration → Review of Production & Manufacturing Capabilities → Collaboration Connection → Future AI Partner Matching
Register
③ We are looking for domestic and international buyers. (Need Buyers)
Farmers, producer organizations, and manufacturing companies are requesting cooperation with new buyers, such as domestic and international distributors, importers, brand companies, and food service and catering businesses.
Process:
RFQ Registration → Product & Supply Capability Review → Market & Buyer Connection → Future AI Buyer Matching
Register
Contact : mail@markethub.org
Version History
Version | Main contents | situation |
| v1.0 | Water chestnut Species·corm·Fresh·Peeled·Frozen·Canned·Powder·Starch·RFQ Basic Structure Registration | complete |
| v1.1 | Verification of raw data for domestic production, test cultivation, import, distribution, HS, and customs clearance | expected |
| v2.0 | PRP Segmentation by Quality Standards, Processing Yield, and Texture by Fresh, Peeled, Frozen, Canned, Powder, and Starch | expected |
| v3.0 | Production/Import – Pre-processing/Frozen/Canned Goods – Foodservice/HMR/Distribution/PB Buyer Verified Container Combination | expected |
