Calon Wen is launching a Wales-wide TV advertising campaign to promote the benefits of its bagged milk.

The Welsh organic milk co-op introduced local milk packed in an eco-bag in 43 Tesco stores in the principality this week. To back the move Calon Wen has also launched a 20-second animated ad on S4C from this week and ITV Wales from 1 May. The packs use 75% less packaging than conventional poly-bottles, the company claimed.