Apparently blockchain can be used for more than just cryptocurrency transactions.

A group of food supply companies and retailers has joined forces with computing company IBM in an effort to keep food gone bad off store shelves. The companies will use IBM's blockchain technology to keep track of food items' progress from source to shelf. Some of the companies taking part include Dole, Driscoll’s, Golden State Foods, Kroger, McCormick and Company, McLane Company, Nestlé, Tyson Foods and Unilever.

This new system will allow these companies to have secure access to a continually updating log of each step of the journey. Even better, though, the blockchain system ensures that the information is trustworthy, since once it is entered it cannot be altered or corrupted. Just another way in which technology is making itself useful in our daily lives.