Tetra Pak on track with smart cartons to warn of warm milk

Tetra Pak is on track to release smart milk cartons that will change colour after being out of the fridge for too long.

According to the Financial Times, Tetra Pak has been hard at work on a chip that would be embedded in cartons to provide information via a scannable label such as how long the package has been out in the open.

Tetra Park partnered with Brazilian food cooperative Aurora to come up with a method of determining processing and packaging information such as which cow on which farm produced the milk, when scanned with a cell phone.

Tetra Pak will target Brazil, Russia, India and China and the new cartons will hit the market next year.