Perishable products lose their freshness and shelf life fast when exposed to high temperatures. Product date codes are helpful to indicate freshness but are accurate only when products are kept within proper temperatures. Fresh-Check food temperature indicators, manufactured by Temptime, are self-adhesive time-temperature indicators that can monitor food from the plant to the store to consumers’ homes. When exposed to heat, our food temperature indicators change color to indicate exposure to heat that can accelerate spoilage. They are the perfect on-package fresh food management tool, instantly and visually indicating that the freshness may have been impacted by heat exposure.