Diageo, the drinks giant, is to build a new state of the art brewery on a site in Ireland where the first Guinness brewery was established in 1755. The new brewery, which is set to open in 2013, will be located on a 73-acre site in Leixlip that Diageo acquired from the Guinness family and the local County Kildare council. Once open, the Arthur Guinness Brewery will become the company’s biggest brewery globally, with a capacity of five million hectolitres, and will operate in conjunction with the St James’s Gate site in Dublin. All production from the existing Kilkenny and Dundalk breweries will be moved to the new brewery, which will brew Guinness, as well as other Irish beers such as Kilkenny and Harp. The group said that the development formed part of a Eu650m (£517.6m) investment in Diageo’s brewing operations in Ireland. Gerry O'Hagan, supply director for Guinness and Baileys, said: “The new brewery is part of the single biggest capital investment made by Diageo in its supply infrastructure. It represents a major vote of confidence in our beer business here in Ireland.” Brian Duffy, Guinness global brand director, said: “This site announcement is a truly significant decision by Diageo. Not only are we demonstrating our commitment to Ireland, we are also staying true to the roots and heritage of the Guinness brand and Arthur himself.”