Australian beer brand XXXX has launched a “zero-carb” beer, which the company says is Queensland’s first such offering. This expands its portfolio with a “guilt-free” beverage option. The XXXX Ultra Zero Carb is an Australian lager brewed with rho (a solution of potassium salts) at the Castlemaine Brewery, which is wholly owned by the Japanese beverage corporation Lion. It contains less than 0.5 grams of carbs per bottle served or less than 0.1 grams per 100 mL on tap.