Summer temperatures can cause problems for shippers, transport companies and consignees since temperature sensitive goods might exceed thermal limits. Assigning the responsibility is critical, sometimes almost impossible, without hurting long term business relations. One critical situation is the shipment of empty PET bottles from manufacturers to the bottlers. For cost reasons, PET bottles are designed with the almost absolute minimal wall thickness and once filled up, should safely withstand the internal gas pressures. It is a fact that exceeding a certain temperature limit highly influences the PET bottles’ future durability. The Jumbo-CelsiDot® 54°C thermo label is a highly reliable, easily applied and economical method to guard against excessive heat during shipment.