Sous-vide pasteurization is the use of a controlled combination of temperature and holding time to reduce pathogenic microorganisms in food cooked in a sealed bag in a temperature-controlled water bath. A lower cooking temperature can achieve a specified level of pathogen reduction when the food’s coldest point reaches the required temperature and remains there for the validated time. Temperature alone is not enough to determine safety.
Microbial destruction is cumulative: a higher temperature generally requires less holding time, while a lower temperature requires a longer exposure. The necessary schedule depends on the food type, thickness, starting temperature, fat content, target pathogen reduction and the accuracy of the equipment. The holding period must be based on the temperature at the coldest point of the food, not simply the time the bag enters the bath.
Pasteurization reduces specified pathogens to a defined level; it does not make food sterile or eliminate every spore. Sterilization is a more extensive process designed to destroy or control a broader range of microorganisms. Vacuum packaging and sous-vide cooking do not make food shelf-stable by themselves.
A statement such as “cook chicken at 60°C for 30 minutes” is incomplete unless it specifies product thickness, the time required for the centre to reach temperature, the target reduction and the validated schedule being followed. Do not substitute a generic internet time for the food-safety requirements that apply to your operation.
Chef’s tip: document the exact food, maximum thickness, bath temperature, come-up time, validated hold time, cooling method and storage limit in the kitchen’s sous-vide procedure. When a validated schedule is unavailable, use an approved conventional cooking method.
This term is one of hundreds covered in depth across OCS courses, learning paths, and 1-on-1 coaching with Chef Eric.
