What indicates that food should be rejected upon delivery?

The presence of ice crystals in packaging or on food is a clear indicator that the product has likely been subject to temperature fluctuations, which can compromise food safety. Ice crystals suggest that the food may have thawed and refrozen, leading to potential spoilage or the growth of harmful bacteria. This situation is particularly concerning for perishable items, as it can significantly impact their quality and safety.

In contrast, neatly sealed packaging, present labels, and fresh smells do not provide reliable evidence regarding the safety of the food upon delivery. Neat packaging may maintain an appealing appearance without guaranteeing that what's inside is safe to consume. Labels are helpful for identification and tracking, but they do not address the food's condition during transport. Similarly, a fresh smell might be comforting but does not account for possible contamination or spoilage that could occur prior to delivery.