15 Apr 2019 --- In a £16 million (US$21 million) move, plastic ring carriers and shrink wrap are to be removed from multipacks of Diageo’s Guinness, Harp and Smithwick’s beers. In its place comes 100 percent recyclable and biodegradable cardboard packaging, with a recycled content level of 15 percent. The new packs will be on Irish shelves from August 2019 and in the UK and all other export markets from Summer 2020.