Why Choose IQF Frozen Water Chestnuts from Jindefu Foods

1. Core Advantages of Jindefu Foods' IQF Frozen Water Chestnuts

Water chestnut (botanical name: Eleocharis dulcis) is a characteristic aquatic vegetable native to China, featuring crisp tender texture, sweet fresh taste, and stable performance under heat processing. For this reason, it is widely used in global catering, prepared meals, pastry fillings, meat product processing, snack food and other fields.

As a professional frozen food manufacturer rooted in Longhai, Zhangzhou, Fujian Province, Jindefu Foods leverages the endowment of the local core production area and focuses on standardized production and global export of Individually Quick Frozen (IQF) water chestnuts. To ensure consistent quality and safety for global customers, we have established a full-process management system covering from farm to cold chain, which enables us to provide a full range of frozen water chestnut products with stable quality, compliant safety, and customizable features.

2. Core Origin Advantages and Raw Material Traceability Control

Our core competitive edge stems from two key pillars: origin advantages and full traceability management of raw materials, both of which are critical focus points for global purchasers.

2.1 Natural Endowment of the Premium Production Area

Longhai, Zhangzhou is located in the Golden Triangle of Southern Fujian, with a subtropical maritime monsoon climate. It benefits from a long frost-free period, sufficient sunlight, and abundant rainfall all year round, while the alluvial plain along the river provides fertile soil with high organic matter content.

As a result, this area is widely recognized as a core high-quality water chestnut production area in China, and locally grown water chestnuts have full shape, white flesh, crisp tender texture, low fiber content, and moderate sugar content—making them an ideal high-quality raw material base for frozen processing.

2.2 Full-Chain Raw Material Traceability Management

To ensure the traceability and quality of raw materials, we have established a stable direct supply partnership for more than 10 years with large-scale, compliant planting cooperatives in Longhai, enabling full traceability from the farm to the production workshop. Key control measures include:

• Planting Stage: Our cooperative bases follow Good Agricultural Practices (GAP), and we conduct full-cycle management and control on the use of pesticides and fertilizers. Specifically, we set planting standards in advance to match the pesticide residue limit requirements of target export markets, ensuring compliance from the source.

• Harvesting Stage: We strictly implement the principle of "harvest on demand, process immediately after harvest" to preserve freshness. This means we strictly control the maturity of harvested water chestnuts and tightly manage the time window from harvest to factory processing, thereby preserving the freshness of raw materials to the greatest possible extent.

• Factory Acceptance Inspection: Before raw materials enter the production workshop, we carry out pre-acceptance processes including sensory screening and rapid pesticide residue testing for each batch. Any unqualified raw materials are rejected at this stage to avoid quality risks.

3. Standardized IQF Production Process (Core of Our Factory Professionalism)

To maintain product quality and safety, we adopt industry-advanced IQF production technology, equipped with class 10,000 clean production workshops and fully automated processing equipment. We have also formulated standardized production SOPs to lock in freshness at low temperature throughout the process, reduce the loss of texture and nutrients, and strictly control food safety risks in the whole production cycle. The core production process is as follows:

1. Raw Material Pre-treatment

   We first conduct initial manual screening of fresh water chestnuts to remove malformed, worm-eaten, and damaged fruits, which ensures uniform quality of raw materials entering the processing line.

2. Cleaning and Peeling

   Following pre-treatment, we adopt multi-stage bubble cleaning and food-grade mechanical peeling technology, supplemented with manual re-inspection and trimming. This combination completely removes peel and impurities, ensuring the cleanliness of the flesh.

3. Grading and Cutting

   Based on customer requirements, we carry out customized processing including whole fruit grading, slicing, dicing, and strip cutting. We strictly control dimensional tolerance to ensure uniform specification of finished products.

4. Secondary Cleaning and Color Protection Treatment

   After cutting, we use food-grade purified water for secondary cleaning and carry out mild passivation treatment according to customer needs. This ensures the stability of color and taste of finished products, and we do not use illegal food additives throughout the process.

5. Individually Quick Frozen (IQF)

   To lock in freshness and texture, we quickly send processed water chestnuts into the IQF freezing tunnel with temperature below -35℃ to achieve ultra-fast freezing in a short time. This technology preserves the cell structure of water chestnuts to the greatest possible extent, avoiding flesh damage caused by large ice crystals. As a result, the product maintains a crisp taste after thawing and has reduced juice loss.

6. Foreign Matter and Quality Control Screening

   After freezing, we conduct manual screening and vibration classification of frozen finished products to remove sticky and damaged products. We then carry out multi-stage metal detection and X-ray foreign matter inspection to strictly control foreign matter risks in all links.

7. Packaging and Warehousing

   Finally, we carry out quantitative packaging according to customer requirements and immediately transfer packaged products to a constant temperature cold storage at or below -18℃, ensuring no break in the product cold chain throughout the process.

4. Full-Dimensional Quality Control and International Compliance Guarantee

Quality and compliance are the core thresholds for foreign trade export, and our management system fully meets the regulatory requirements of mainstream markets including the European Union, the United States, Japan, and Southeast Asia. Our statements are rigorous and traceable, completely avoiding compliance risks for our customers.

4.1 Authoritative System and Market Access Certifications

To prove our compliance capabilities, we have passed a number of internationally recognized food management system certifications and market access certifications, which cover the entire production process. We can provide a full set of certification documents for customers to ensure smooth customs clearance of products. Our certifications include but are not limited to:

• HACCP (Hazard Analysis and Critical Control Points) System

• ISO22000 Food Safety Management System

• BRCGS (BRC Global Standards) Food Safety Global Standard

• U.S. FDA Food Enterprise Registration

• HALAL Certification

• Kosher Certification

4.2 Standardized Control of Key Indicators

To ensure product safety, we conduct self-inspection via third-party laboratories for each batch of finished products. The core control indicators and international common limits are listed below, and we can adjust testing standards and control limits according to the specific regulatory requirements of the target market:

4.3 Compliance Statement

To protect the rights and interests of customers, we make a clear compliance statement for our frozen water chestnut products:

We do not use illegal food additives in the production process, and all processing aids meet food-grade standards and additive use regulations of the target market. Additionally, the inner and outer packaging materials of the products all meet the safety standards of food contact materials, and we can provide corresponding compliance statements and testing documents according to customer needs.

5. Product Specifications and Customized Services

Our products are designed to accurately meet the needs of customers in different overseas channels, covering full scenarios including industrial processing, catering wholesale, and retail distribution. We also clarify our flexible supply capacity below:

5.1 Full Series of Conventional Product Specifications

We provide a full range of conventional frozen water chestnut products, with detailed specifications as follows:

5.2 Customized Service Capabilities

In addition to conventional specifications, we provide comprehensive customized services to meet the personalized needs of different customers, including:

• Specification Customization: We customize cutting size and fruit diameter grading standards according to customer requirements, ensuring products match specific usage scenarios.

• Packaging Customization: We support customization of retail small packages (500g, 1lb, 8oz, 1kg, etc.) and industrial bulk packages. We can adapt to customer's brand packaging and print exclusive information, and all packaging materials fully meet the food contact standards of the target market.

• Process Customization: We adjust process parameters such as passivation and freezing according to the customer's application scenarios, adapting to the customer's specific requirements for taste and shelf life.

• Compliance Customization: We adjust testing items and control standards according to the regulatory requirements of different countries and regions, and provide a full set of official and third-party documents required for customs clearance.

5.3 Basic Order and Delivery Instructions

To ensure smooth cooperation with global customers, we set clear order and delivery rules as follows:

• Minimum Order Quantity (MOQ): 12 metric tons for conventional specifications (customized orders can be negotiated separately).

• Delivery Cycle: We arrange shipment for in-stock orders within 7 working days, while for customized orders, we confirm the delivery time through negotiation according to the production schedule.

• Port of Shipment: Xiamen Port, China (we can coordinate other major domestic ports according to customer requirements to optimize logistics costs).

• Payment Terms: We support conventional international trade payment methods, including T/T (30% deposit, 70% against the copy of B/L) and irrevocable sight letter of credit, to ensure financial security for both parties.

6. Product Storage, Transportation and Application Guide

To help overseas customers use our products correctly and avoid quality disputes caused by improper operation, we provide standardized storage, transportation and application guidelines below:

6.1 Storage and Transportation Requirements

To maintain the quality of frozen water chestnuts, customers need to follow clear storage and transportation requirements:

First, products must be stored and transported in a low-temperature environment at or below -18℃ throughout the process, and the product has a shelf life of 24 months when unopened and stored under compliant conditions. Second, we recommend slow thawing at 0-4℃ low temperature; customers should process and consume the products as soon as possible after thawing. Repeated freezing and thawing will affect the taste and quality of the product, so this operation should be avoided.

6.2 Global Mainstream Application Scenarios

Due to stable quality and convenient processing characteristics, our frozen water chestnut products are widely used in many fields of the global food industry, including:

• Catering Industry: Used as side dishes for hot pot, stir-fries, cold dishes, and soup bases, providing crisp texture and sweet taste.

• Prepared Meal Processing: Applied in ready-to-eat meals, frozen fast food, and meal replacement products, with stable texture after heating.

• Food Processing Industry: Used in meat products (meatballs, sausages), pastry fillings, sauces, and snack foods (crisps, puffed foods).

• Canning and Pickling Industry: Whole frozen water chestnuts are ideal for canning, pickling, and marinating processes, maintaining shape and taste stability.