1. A method of tracing the origin of food products comprising steps of associating product codes on a plurality of food product packages with a container code on a container for transporting the food product packages to a harvest site, receiving the container code through a mobile phone connection with the harvest site at which the container is delivered, acquiring information about the mobile phone connection to the harvest site, and relating the product codes associated with the container code to the information about the mobile phone connection to the harvest site for linking food products placed within the food product packages at the harvest site with information about the harvest site.