The refrigerated pet food category is expanding as consumers seek fresh, minimally processed options. However, these products present increased risks due to shorter shelf life, higher moisture content and reduced use of synthetic preservatives. During the Tech Talk presentation “Freshness fetched: Delivering science-backed shelf-life extension for refrigerated pet food,” Ricardo Moreira, business development director for pet food ingredient supplier Kerry, outlined strategies to address these challenges, during Petfood Forum 2026.
Refrigerated formulations are more susceptible to microbial growth and spoilage, particularly under variable storage and distribution conditions. Moreira emphasized the importance of balancing safety, quality and label expectations through the use of clean-label, “kitchen-friendly” ingredients that provide antimicrobial functionality without compromising consumer appeal.
Microbiology and pet food safety
A key focus of the presentation was predictive microbiology, which models how microorganisms behave under specific conditions such as temperature, pH and water activity. These tools enable manufacturers to anticipate risks and optimize formulations before production, reducing reliance on trial-and-error testing.
Moreira also highlighted the need to validate these strategies through real-world trials. Laboratory findings must translate to consistent performance across the supply chain, where temperature fluctuations and handling variability can impact product stability.
Pathogen control remains critical, particularly for organisms such as Salmonella and Listeria monocytogenes. Integrating clean-label antimicrobial systems within a broader “total food protection” strategy, combining formulation, processing and packaging controls, can help mitigate these risks.
As the category grows, science-backed, multi-hurdle approaches will be essential to ensure both safety and shelf-life performance in refrigerated pet food products.
