Patent Issued for Food packaging machine tracking food safety data using hash trees (USPTO 11952158).

Tetra Laval Holdings & Finance S.A. has been issued a patent for a food packaging machine that tracks and records food safety data in a tamper-proof manner. The machine receives information about the packaging material and food being supplied, creates a food data transaction, and sends it to a network data processing system to be appended to a packaged food production data hash tree. The machine also verifies the food data record with the hash tree before creating the transaction. This invention aims to improve food safety in the production, packaging, transportation, and sale of food products. [Extracted from the article]