Heat transfer is measurable in practice; a simple physics rule does not replace the product’s applicable storage instructions.
Record three variables
Log ambient conditions, product quantity and starting state, and packaging/insulation arrangement. Add lid openings, loading and dwell times; compare runs only when conditions and measurement methods match.
Heat moves from warmer to cooler areas; insulation and a closed lid can slow transfer. A phase-change pack’s behaviour depends on material and manufacturer conditioning instructions. Document sensor position and relation to the product.
Compare product-level route-trial records with the product label and approved site plan. An average or fill observation alone does not prove suitability; refer excursions to the authorised lead.
