It was established in 1966 by Wolfgang Blass, a German immigrant from who arrived in Australia in 1961 with little money and a diploma in winemaking. One of his first jobs was with Tolley, Scott and Tolley as a winemaker. Wolf Blass Wines Ltd was purchased by Mildara in 1991, to form Mildara Blass, and was itself bought by Fosters Brewing six years later, which then acquired the Rothbury Group in 1998.
When winemaker Wolfgang Blass started producing his style of red and white wines he claimed they would "make strong women weak and weak men strong", Other contentions by Blass include that "parasitic and idiotic funding systems for overseas promotion mean that overproduced wine from Australian irrigated fruit will hit rock bottom, facing competition from South Africa", and "Barossa should focus on what it does best: full-bodied Shiraz". He has also stated that "No table wine over 15% [alcohol by volume] should ever get any medal, anywhere in the World, ever.