The Co-op Group is expanding its Truly Irresistible wines range as part of efforts to bolster its own-label offer.

From 8 September, it is adding a Pic Saint Loup rosé, a Picpoul de Pinet and Barbera d’Asti (rsp: £6.99/75cl) to the premium range, as well as a 200ml mini bottle of prosecco (rsp: £2.25) under its standard label.

BWS category trading manager Simon Cairns said the Truly Irresistible umbrella would give consumers confidence to buy more adventurous wines.