Molson Coors is introducing a new "cold" bottle, which turns the Coors Light mountains from white to blue when the beer is chilled to four degrees celsius or less,to its line-up in Canada.

The bottle, which will be rolled out across Canada, features proprietary temperature-sensitive thermal chromatic ink technology, the brewer's Canadian unit said yesterday 26 June).

From this month, all 341ml Coors Light bottles sold in Canada will carry the new Cold Certified label. The introduction of the Coors Light Cold Certified Bottle follows on the heels of the launch of the Cold Certified Can last year.