2026-08-02 Food Machinery 46

Introduction: Looking at industry signals of food safety from a T-shirt

Recently, an industry initiative to "detect botulinum toxin in infant formula" has attracted attention overseas—an organization has printed a batch of T-shirts with the slogan in an attempt to encourage regulatory authorities and companies to pay attention to this potential risk in this intuitive way. This seemingly simple move reflects the macro trend of stricter global food safety regulations and upgraded consumer demands for infant formula. For food machinery manufacturers, this is not only a challenge, but also an opportunity for product upgrades and market expansion.

Why does botulinum toxin detection become a key link in formula powder production?

botulinum (Clostridium botulinum) can produce highly toxic botulinum toxin in an anaerobic environment. The intestinal flora of infants and young children is immature and extremely sensitive to botulinum spores. The Codex Alimentarius Commission (CAC) and major markets such as China and the European Union have set strict limits on botulinum toxin in infant formula. Traditional testing methods rely on laboratory culture, with a cycle of 7-14 days, which cannot meet the real-time monitoring needs of continuous production lines. Therefore, Online rapid detection technology It has become a standard feature of high-end food machinery.

In production line design, critical control points (CCPs) are typically set at Concentration, spray drying and packaging 。 Machinery suppliers are required to provide integrated detection modules, such as online pathogen monitoring systems based on PCR technology, which can output results within 4 hours. At the same time, the equipment materials must meet FDA and GB 4806 standards to avoid the growth of microorganisms due to cleaning blind spots.

How can food machinery adapt to more stringent hygiene design standards?

To meet the requirements for botulinum toxin prevention and control, the equipment structure must adhere to three principles: "no blind spots, easy cleaning, and verifiable". Specifically:

  • surface roughness The Ra value of the stainless steel surface in contact with the material should be ≤0.4μm to reduce bacterial attachment points;
  • welding process Automatic rail welding is adopted to avoid micro-cracks caused by manual welding;
  • CIP/SIP Integration The online cleaning (CIP) temperature must be above 80℃, the online sterilization (SIP) temperature must be maintained at 121℃ for 30 minutes, and the pipeline must be designed to be completely evacuated.

With spray drying tower For example, the new equipment has introduced a "hot air distribution ring" and a "fluidized bed cooling section" for linkage control to ensure that the powder output temperature is below 40℃ and inhibit spore resuscitation. In addition, packaging machine It needs to support nitrogen replacement and online sealing testing to prevent secondary pollution. Our company is Milk powder production line The integrated hygienic-grade valve and sterile sampling port can significantly reduce the risk of human intervention.

Selection Guide: Building a Formula Powder Production Line That Meets Future Standards

When evaluating equipment, the purchaser should focus on the following four indicators:

  • detection integration Whether a rapid detection interface is reserved, and whether data can be interconnected with the LIMS system;
  • Material certification Provide EN 10204 3.1 material certificate, and the surface treatment complies with EHEDG specifications;
  • Energy efficiency and recovery The thermal efficiency of the high-tower evaporator should be ≥85%, and the dust recovery rate should be ≥99.5% to reduce material retention;
  • modular extension Supports the addition of "spore killing" units (such as electron beam or ultra-high voltage technology) in the future.

For example, continuous pasteurizer The plate heat exchanger gap can be automatically adjusted according to the viscosity of different formula powders to ensure uniform heat penetration. At the same time, ton bag packing station Equipped with automatic bagging and vacuuming system to avoid manual contact. These details all directly affect the microbiological parameters of the final product.

Industry Trends and Compliance Recommendations

The EU plans to revise its microbiological standards for infant food in 2025 to include botulism in its "zero tolerance" list. The domestic "National Food Safety Standard for Infant Formula" (GB 10765-2021) also strengthens the control requirements for the production process. Recommended companies:

  • Priority selection Whole line verification service Suppliers, including FAT (Factory Acceptance Test) and SAT (Site Acceptance Test);
  • Clearly stated in the contract Microbial Challenge Test Terms, such as verifying equipment clearance efficiency using a 5 log spore suspension;
  • follow digital traceability The function automatically records the sterilization temperature, time, and test results for each batch, meeting the regulatory traceability requirements.

sum up

Although the "T-shirt incident" was a public appeal, it accurately pointed to the core pain points in the production of infant formula powder. The food machinery industry must shift from "passive compliance" to "proactive defense," building a dual physical and data barrier through embedded testing, hygiene design, and intelligent verification. Our company Fully automatic sterile filling system It has passed numerous international certifications to help customers achieve a balance between safety and efficiency. Welcome to visit Product Center Get more technical parameters, or view Industry News Stay informed about the latest regulatory developments.

Frequently Asked Questions

Key control points are usually located in the concentration, spray drying and packaging stages. It is recommended to install an online sampling valve at the outlet of the concentration tank, equip the powder outlet of the spray drying tower with a rapid detection module (such as PCR, with results available in 4 hours), and integrate sealing testing into the packaging machine. Meanwhile, the CIP temperature must be ≥80℃, and the SIP temperature must be maintained at 121℃ for 30 minutes to ensure that there are no blind spots in the pipeline.

EHEDG and FDA standards must be followed: contact material surface Ra ≤ 0.4μm, automatic welding of the track, and the tubing can be completely emptied. The CIP/SIP system shall be automated and the temperature time profile shall be recorded for each batch. In addition, it is recommended to choose a silo with a sterile respirator to prevent spores from entering.

Key points to consider: 1) Test integration capabilities (whether a fast interface is reserved); 2) Material certificate (EN 10204 3.1); 3) Thermal efficiency (evaporator ≥85%); 4) Modular scalability. The supplier is also required to provide a microbial challenge test report to verify 5 log spore removal efficiency.
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