Microbiological challenge testing is a specialized form of testing to evaluate how microorganisms behave in food products throughout their shelf lives under defined storage and processing conditions. Selected microorganisms are intentionally introduced into a product, and their survival, growth or reduction is monitored over time. This provides scientific evidence to support food safety, product development, shelf-life determination and regulatory compliance.
Consumers and regulators expect food products to be safe from harmful microorganisms. Microbiological challenge testing is used to evaluate how microorganisms behave in food products throughout their shelf lives under defined storage and processing conditions. By intentionally introducing selected microorganisms into a product and monitoring their survival, growth or reduction over time, challenge testing provides scientific evidence to support food safety, product development, shelf-life determination and regulatory compliance.
SGS offers microbiological challenge testing for food safety validation. We will help you ensure the effectiveness of food safety controls, build consumer confidence in your product and meet regulatory expectations for food safety.
Ensure food safety, quality and regulatory compliance with challenge testing from SGS.
- Reduce the risk of foodborne illnessOur pathogen growth assessments identify whether pathogens could become dangerous before a food product is consumed.
- Validate shelf life and use-by datesOur shelf life challenge studies demonstrate that a food product stays safe throughout its claimed shelf life.
- Support HACCP control measuresFood process validation contributes to the verfication of actions taken at each critical control point.
- Meet regulatory expectationsResults from our challenge studies provide scientific evidence for safety claims and shelf-life decisions.
- Reduce commercial and legal risksMicrobiological challenge testing of food products minimizes the risk of recalls, litigation and reputational damage.
- Support product innovationChallenge testing provides insights into the safety consequences of product changes before the reformulated product enters the market.
Why SGS?
As the world’s leading testing, inspection and certification company, with an unrivaled global network, we provide services that allow you to make better decisions. Our tailored microbiological challenge testing studies are performed in specialized laboratory facilities with dedicated microbiologic expertise, allowing for complex experimental design, controlled inoculation procedures and advanced data interpretation. We will help you support food safety, quality and regulatory compliance.
FAQ
Challenge studies help food manufacturers and retailers make informed decisions regarding product formulation, storage conditions, distribution practices and consumer instructions. They help reduce uncertainty, strengthen risk assessments, support product innovation, and minimize the likelihood of costly recalls or shelf-life failures.
Microbiological challenge testing contributes to food safety by ensuring that microbial risks have been scientifically evaluated and effectively controlled.
SGS commonly applies studies to ready-to-eat foods, refrigerated products, fermented foods, beverages and innovative product categories where microbial behavior cannot be reliably predicted from published data alone.
Challenge testing may involve foodborne pathogens, spoilage microorganisms or beneficial microorganisms. SGS often use surrogate microorganisms to mimic the behavior of target pathogens during process validation and in-plant studies. The selection of appropriate challenge strains or surrogates by SGS experts is a critical aspect of study design, requiring extensive microbiological expertise, knowledge of food matrices and an understanding of microbial ecology.