Abstract: The present disclosure relates to a method for monitoring item sourcing and handling information. The present disclosure provides a device for tracking and tracing a product or item's source and handling history. The present disclosure may, for instance, be applied to any product that is packaged, distributed, shipped, or requiring or using cold chain distribution where a greater quality of freshness of a product is desired or where preventing distribution or removing from distribution of a product exposed to a preselected condition such as an undesirable environmental temperature is desired.

Abstract: The present invention relates to a contamination detector associated with a double bar code that includes coded indicia used to identify the presence of conditions indicative of microbial contamination, including toxic contaminants, bacterial metabolites, and other microbial secretions. Of the two bar code symbols associated with the contamination detector, the first identifies the product or container, while the second bar code symbol is designed to identify the presence of contaminants. When contamination is not detected, the first bar code symbol is scanner readable, whereas the second bar code symbol is not. Once contamination is detected, bars in both bar code symbols can appear or disappear causing the first bar code symbol to become scanner unreadable and the second bar code symbol to become scanner readable.

Abstract: A dual bar code for detecting contamination. When no contamination is present, a first bar code identifies the product. When contamination is present a second bar code identifies the presence of contaminants.

Abstract: A dual bar code for detecting contamination. When no contamination is present, a first bar code identifies the product. When contamination is present a second bar code identifies the presence of contaminants.

Abstract: The present invention relates to a contamination detector associated with a double bar code that includes coded indicia used to identify the presence of conditions indicative of microbial contamination, including toxic contaminants, bacterial metabolites, and other microbial secretions. Of the two bar code symbols associated with the contamination detector, the first identifies the product or container, while the second bar code symbol is designed to identify the presence of contaminants. When contamination is not detected, the first bar code symbol is scanner readable, whereas the second bar code symbol is not. Once contamination is detected, bars in both bar code symbols can appear or disappear causing the first bar code symbol to become scanner unreadable and the second bar code symbol to become scanner readable.

Abstract: A dual bar code for detecting contamination. When no contamination is present, a first bar code identifies the product. When contamination is present a second bar code identifies the presence of contaminants.

Abstract: A dual bar code for detecting food contamination. When no contamination is present a first bar code identifies the food product. When contamination is present a second bar code identifies the presence of contaminants.

Abstract: The disclosure describes food contamination detectors adapted to be used with vacuum packages and package systems including such detectors.

Abstract: A food contamination detector. The food contamination detector comprises a first bar code symbol coded to identify a food product by a bar code reader, a second bar code symbol coded to identify contaminated food by a bar code reader, and an indicator printed onto a substrate which changes color when food is contaminated and causes the first bar code symbol to be unreadable by a bar code reader and causes the second bar code symbol to become readable by a bar code reader.

Abstract: A food contamination detector. The detector comprises a tray for holding a food product. A collector is placed in the tray for collecting liquids from the food. A bar code detector is located in the collector.