heat-sensitive indicators

Heat-sensitive indicators are materials or labels that change color when exposed to certain temperatures. They are used to verify if a product has been stored or transported at the correct temperature, such as in food shipping or medical supplies. When the temperature exceeds a specific threshold, the indicator's color change provides a visual confirmation that the item may have been compromised by heat. These indicators help ensure safety and quality control by offering an easy way to monitor temperature exposure without the need for complex equipment.