Recent dairy product recalls in Australia are providing a snapshot of where food safety risks commonly exist across the dairy supply chain. And they are a handy reminder of how the Primary Production and Processing Standard for Dairy Products (Standard 4.2.4) is designed to manage those risks.
Over the past year, several microbial contamination-related recalls have involved a range of dairy products, including milk, fresh cheese and gelato. While the number of recalls remains low relative to the size of the industry, the nature of these events highlights consistent themes that are relevant to all dairy businesses.
What products were involved?
Recent recalls linked to microbial contamination have included:
- Pasteurised milk (WA) with potential Listeria monocytogenes contamination.
- Fresh ricotta cheese (SA) with potential E. coli contamination.
- Gelato (ice cream) (SA) products with E. coli detected.
These products differ in form, processing steps and shelf life, but they share two important characteristics:
- They are ready-to-eat dairy products.
- They rely heavily on effective post-pasteurisation controls to remain safe.
These incidents align closely with the intent of Food Standards Code 4.2.4, particularly requirements for dairy processing businesses to identify and control food safety hazards and to ensure dairy products are processed in a microbiologically safe way.
In recent recalls, contamination is most consistent with post-pasteurisation handling or environmental hygiene issues, rather than failure of heat treatment itself. The inclusion of gelato products also serves as a reminder that freezing does not eliminate pathogens, and frozen dairy desserts require the same level of food safety discipline as other ready-to-eat products.
Encouragingly, traceability systems functioned as intended, allowing affected products to be quickly identified and removed from sale. However, the primary goal of Standard 4.2.4 remains prevention, not response.
Key learnings for the dairy industry
Across these recalls, several consistent lessons emerge:
1. Post-pasteurisation controls matter most. Pasteurisation is a critical control, but it is only effective if followed by:
- Hygienic handling.
- Effective equipment cleaning and sanitising.
- Strong separation between raw and finished product areas.
2. Environmental hygiene remains a key risk area. Pathogens such as Listeria can persist in processing environments, particularly in cool, wet areas. Effective environmental cleaning and verification are essential to prevent recontamination.
3. Fresh and ready-to-eat products require heightened vigilance. Products that are consumed without further cooking, such as milk, fresh cheese and gelato, leave no margin for error if contamination occurs.
4. Traceability systems are critical, but preventative systems come first. While recalls demonstrate that traceability systems are functioning, the primary objective of Standard 4.2.4 is to prevent unsafe food from being produced in the first place.
A reminder for all dairy businesses
Standard 4.2.4 is outcomes focused. It does not prescribe a single way to manage risk, but it does require businesses to:
- Understand their specific food safety hazards.
- Implement controls that are effective for their products and processes.
- Regularly verify that those controls continue to work.
Recent recall events provide valuable learning opportunities, not just for the businesses involved, but for the entire dairy sector.
How Dairysafe is supporting industry
In response to these recent incidents, Dairysafe will continue to support industry through:
- Increased focus during audits on food safety plans, particularly hazard identification, analysis and control for post-pasteurisation steps.
- Greater emphasis on verification, ensuring documented controls are effectively implemented in practice.
- Industry forums and engagement activities to provide practical guidance on hazard identification, analysis and control, and to share learnings across the sector.
Dairysafe remains committed to working with industry to strengthen food safety systems, support continuous improvement and reduce the risk of future recalls. Through shared learning and proactive risk management, we can continue to maintain consumer confidence in South Australian dairy products.