Food Grade QC

Why Do Retort Tinplate Cans Fail in High-Moisture Foods? Reference Standard: ASTM A623 (Standard Specification for Tin Mill Products) & ISO 16496 (Thermal Shock Resistance Calibration) Short Answer An empty sardine can experiences severe metallurgical and structural stress during 121°C retort processing. The primary failures—corrosion and double seam microleaks—stem from the differential thermal expansion between the steel substrate and internal lacquer, combined with micrometer-level geometric shifts in the interlocking seam under extreme pressure differentials. The Retort Crucible: Metallurgical Grain Behavior and Interfacial Adhesion at 121°C Analyzing the structural integrity of retort tinplate packaging requires looking beyond standard material tear resistance. When an empty sardine can or a high-moisture food can … 続きを読む