The Sustainable Wine Roundtable (SWR) has initiated the Bottle Weight Accord to encourage shift towards lighter bottles of wine, with a goal to reduce the average weight of 750 ml still wine bottles from 550g to 420g by the end of 2026. The initiative has garnered support from retailers like Lidl GB, Systembolaget, and The Wine Society, covering 5% of global still wine sales. The accord is projected to save 144,428 tonnes of CO2 annually. Retailers are under pressure to maintain quality while reducing bottle weight, with Tesco looking to extend this practice to premium wines. The campaign aims to challenge consumer preferences towards heavier bottles and promote sustainability in the wine industry.