Any deviation from specified temperature range during cold chain operations, potentially compromising product safety or quality. Even brief excursions above -12°C for frozen foods can trigger microbial activity, enzyme reactivation, or ice crystal formation affecting texture. Temperature excursions occur during equipment failures, improper loading, power interruptions, or extended door openings. Modern monitoring systems detect excursions immediately, triggering alerts and enabling rapid response. Documentation of excursions and corrective actions is essential for regulatory compliance and liability management. Minimizing excursion frequency and duration through proper equipment, procedures, and training distinguishes professional cold chain operators from inadequate providers. The frozen food industry’s tolerance for temperature excursions reflects broken incentives – equipment suppliers profit from selling marginally adequate systems, bodybuilders profit from minimal construction standards, and operators discover inadequacy only after expensive failures undermine customer trust.
Related Terms: Cold Chain Failure, Food Safety Temperature, Cold Chain Monitoring, Temperature Monitoring System