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Challenge Studies


Our challenge studies determine the potential for growth, persistence, or die-off of spoilage and pathogenic organisms in your product. We employ the National Advisory Committee on Microbiological Criteria for Foods (NACMCF) guidelines when designing our studies and are an ISO-accredited laboratory.

MxNS Challenge Studies

Beyond Analytics: Practical Solutions From Challenge Study Data

Data generated by challenge studies can provide valuable insights into the effectiveness of your formulation and the efficacy of a preservative or acidification process or even help identify potential issues. We believe in going beyond just providing analytical results. We are committed to offering practical solutions to our clients, empowering them to overcome any obstacles they may encounter. Our team of experts interprets the data and provides actionable recommendations tailored to your specific needs. With our comprehensive approach, you can trust that we will not only validate the quality of your products but also assist you in optimizing their performance. Your success is our priority, and we are here to support you every step of the way.

Common Challenge Study Types

Acidified Foods

An acidified food is a type of low-acid food that undergoes a meticulous process to ensure its safety and quality. These acidified foods are carefully prepared to meet the highest standards with a finished equilibrium pH of less than 4.6 and a water activity level greater than 0.85. To guarantee the elimination of any potential pathogens, the products are inoculated at a high level and closely monitored for expected die-off. Our team of experienced Process Authority experts is readily available to address all your validation needs. Trust us to provide you with the utmost assurance and expertise in acidified foods.

Clean Label

In response to the growing demand for clean-label products, more and more manufacturers are adopting a conscious approach by either eliminating preservatives or transitioning to a natural preservative system. At Mérieux NutriSciences, we analyze and evaluate different preservatives and their levels to ascertain their effectiveness. With our expertise, we can assist manufacturers in making informed decisions about their preservative choices, ensuring the highest quality and safety standards for their products.

Hazardous Foods

Challenge studies are a vital tool when it comes to assessing the safety of food products that have the potential to support the proliferation of harmful pathogens. These studies are particularly valuable for food items commonly stored in refrigerated conditions, exposed to elevated temperatures, or even kept at ambient temperatures. It is crucial to understand the vulnerability of these products to the growth of microorganisms, as they can pose a serious threat to public health. By conducting challenge studies, we can effectively evaluate and mitigate the risks associated with these food products, ensuring that they meet the highest safety and quality standards.

Contact Us to Learn More About Our Challenge Services

Uncover the secrets to your products' success! Connect with our experts to explore challenge studies and gain invaluable insights.