the distillery operated with only two stills until 1958. starting at that time, they began to add stills to increase production capacity, eventually reaching production of 12.5 million litres of whisky per year during the 1970s. although in 1987 tomatin was referred to as the largest malt distillery in scotland, stills have been dismantled since the mid-1980s, bringing their total capacity to just over 5 million litres, though as of 2007, they were only producing 2.5 million litres.