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The secret to fresh seafood : Chlorine dioxide unlocks disinfection solutions for all aspects of seafood processing.

27 - Mar - 2026

Seafood lovers , have you ever had this experience ? Fresh fish, shrimp, shellfish, and crab are delicious , but improper handling can ruin their taste and flavor, and even compromise food safety. For the seafood processing industry, every step from processing to shipment is crucial to preserving freshness. With food safety becoming increasingly important to the public , effective, safe, and compliant disinfection products have become essential for seafood processing. Chlorine dioxide disinfectant , with its disinfection and sterilization properties and lack of harmful residues, has become a leading disinfection agent in seafood processing. Today, we'll introduce its applications across all scenarios in seafood processing .

The seafood market is becoming increasingly diversified , with processed seafood products such as sashimi, fish balls, shrimp paste, and ready-to-eat seafood gaining popularity . This has raised the bar for disinfection standards in seafood processing . Effective disinfection and sterilization are crucial, while avoiding disinfectant residues that could negatively impact the flavor of the seafood. Therefore, disinfection products must be effective, safe , and of high quality. Chlorine dioxide , classified as a Class A1 safe disinfectant by the World Health Organization , is explicitly regulated in the National Food Safety Standard for Food Additives: Stabilized Chlorine Dioxide (GB 1886.248-2016) and GB 2760-2024. It is also a designated disinfectant and preservative ingredient in seafood products and their derivatives, providing a solid legal guarantee for disinfection in seafood processing.

the process of seafood processing , the concentration control and operational points in different scenarios directly affect the disinfection effect of chlorine dioxide disinfectant . Based on 43 years of industry experience and the needs of seafood processing, a precise application solution has been developed, covering core aspects such as raw material cleaning, equipment disinfection, environmental disinfection, and preservation preparation. Every parameter has been repeatedly tested and verified to adapt to the processing needs of different types of seafood.

Application scenarios

Recommended concentration range (ppm)

Main function

Key points of operation

Fish fillet/fish chunk cleaning

30–50

Sterilize, remove blood stains, and extend shelf life

Soak for 10–20 minutes, then rinse thoroughly with clean water.

Whole fish / Segmented fish soaking

20–40

Surface sterilization, reducing microbial load

Soak for 15–30 minutes, avoiding prolonged soaking which can cause the meat to become tough.

Shrimp/Shellfish Cleaning

20–30

Sterilization, removal of muddy smell, and preservation

Soak for 5–10 minutes, then rinse with clean water to prevent residue from affecting the taste.

Disinfection of seafood processing equipment/tools

50–100

Equipment surface sterilization and biofilm removal

Wipe or soak for 10–15 minutes, then rinse thoroughly with clean water to avoid direct contact with food residue.

Workshop environment/floor/wall disinfection

100–200

Environmental sterilization and inhibition of mold growth

Spray or mop the floor, leave for 15–30 minutes, then ventilate to avoid prolonged exposure to high concentrations.

Sterilization of packaging containers/turnover boxes

50–80

Sterilization of the inner and outer surfaces of the container

Soak or spray for 10–20 minutes, then drain before use.

Ice coating/cooling water preparation

0.5–5

Inhibits the growth of microorganisms in ice coating/cooling water

Add directly to ice-making or cooling water to control residues and meet food safety standards.

Note: 1 ppm = 1 mg/L. The concentration ratio must be strictly followed during operation to ensure disinfection effectiveness and food safety.

To ensure chlorine dioxide achieves optimal disinfection and sterilization effects in aquatic product processing , choosing the right product is crucial. Xiuba brand chlorine dioxide disinfectant has been deeply rooted in the industry for over forty years, consistently focusing on the research and innovation of disinfection product technology. It boasts 35 patented technologies, including 9 invention patents and 26 utility model patents, guaranteeing the professionalism of its products from a technological perspective. Its food-grade chlorine dioxide series products cover various dosage forms such as powder, tablets, and liquids, adapting to the operational needs of different aquatic product processing scenarios. Effervescent tablets are quick-dissolving and easy to mix, powders are highly stable, and liquids can be directly diluted for use, truly achieving a "one-stop" disinfection solution.

Developed by the core drafting team of the national standard for chlorine dioxide solution, "Stable Chlorine Dioxide Solution (GBT 20783-2023)," Xiuba chlorine dioxide disinfectant adheres to international standards such as ISO9001 quality management system and ISO14001 environmental management system throughout the entire production and delivery process. It has passed multiple authoritative certifications, including CE EU certification and AAA credit rating. Each product is equipped with a hygiene permit and a third-party inspection report, meeting the compliance requirements for national food-grade disinfection products . This ensures that every step of aquatic product processing has a standard to follow and a quality to adhere to.

In practical applications, Xiuba chlorine dioxide disinfectant has become the choice of many seafood processing enterprises due to its high activation rate, chlorine-free residue, and lack of impact on seafood flavor. It is precisely suited for both large-scale seafood processing plant production line disinfection and small-scale seafood workshop raw material processing. Furthermore, addressing the specific needs of seafood processing, the product also removes blood and muddy odors, improving the quality of raw seafood while sterilizing, resulting in safe and fresh processed seafood. More importantly, Xiuba chlorine dioxide disinfectant is simple and easy to use, requiring no complex equipment; simply dilute according to the instructions, significantly lowering the barrier to entry for disinfection operations in seafood processing.

Food safety is paramount, and the disinfection process in seafood processing is a crucial line of defense for safeguarding consumers' food safety. Xiuba Chlorine Dioxide Disinfectant adheres to the principles of "safety, compliance , and practicality," leveraging 43 years of industry experience, professional technological research and development, and authoritative certifications to provide comprehensive solutions for the seafood processing industry. From raw material processing to finished products, from equipment to the environment, professional disinfection technology locks in the freshness of seafood, protecting the safety and quality of every processed seafood product.