Freshness label, A Label Hourglass Exipre Indicator

Freshness packaging label design

The food security problems are often in the headlines. The tainted milk found in Asia recently is a glaring example. The labeling and expiration dates are no longer sufficient, especially if a dishonest merchant interferes. Naoki Hirota has devised a solution that would avoid these problems …

Naoki Hirota has developed a label hourglass, placed in contact with the meat in the package. If meat is unfit for human consumption, they emit ammonia reacts with a non-toxic ink and label changes from white to blue.

Changing color, the bar code becomes unreadable. Unable to scan and therefore unmarketable. Even if the merchant fraud attempts, the reaction will be on a new label. Clever system that will prevent us from doing our shopping in doubt. via

A Hourglass expire indicator works

Freshness packaging label design