How to measure best lunch box performance
Understanding the Core Metrics for Evaluating Lunch Box Efficiency To determine a lunch box’s true performance, start by analyzing its thermal retention capabilities. Studies from the National Food Lab show premium stainless steel models maintain food temperatures between 135°F-158°F (57°C-70°C) for 4-6 hours, outperforming plastic containers by 38% in temperature retention tests. For cold storage, …
