Castle Lager’s origins can be traced to the Johannesburggold rush of 1886. Charles Glass, founder of the Castle Brewery, began selling beer to the miners after noticing a gap in the market. The new beer soon became popular amongst the prospectors of the gold rush, and in 1889 one of Johannesburg's early newspapers, The Digger's News, declared it "a phenomenal success." In 1895, on the success of Castle Lager, South African Breweries was founded, with its head office being the Castle Brewery. Two years later, SAB became the first industrial company to list on the Johannesburg Stock Exchange. Today, Castle Lager is brewed in nine countries and is available in over 40 countries worldwide. In 2000 Castle Lager was awarded in the "World's Best Bottled Lager" category at the Brewing Industry International Awards. In 2002, South African Breweries bought Miller, forming SABMiller. In 2016, Anheuser-Busch InBev acquired SABMiller.
Castle Lite - introduced in 1994, Castle Lite is a reduced alcohol and lower calorie variant of Castle Lager. It is sold in a green bottle and is also available in cans and draught. Castle Lite is lagered at -2.5 °C and is packaged with South Africa’s first thermocromatic temperature indicator. It has an alcohol by volume of 4%.
*Castle Lite Lime - a Lime flavoured variant of Castle Lite introduced in 2014.
Castle Milk Stout - a milk stout that is advertised as "South Africa's Premier Stout". Castle Milk Stout is the only beer that uses a dark roasted malt to extract a rich brew. The addition of caramel balances out the bitterness in an attempt to offer a more balanced taste. It has an ABV of 6%
*Castle Milk Stout Chocolate Infused - a chocolate infused variant of Castle Milk Stout.
Castle Free - a non-alcoholic beer introduced in 2017 and the first of its type to be produced in South Africa.
