[1] They began to brew beer there in the following year and the brewery continues production to this day.

[4] XXXX was introduced with new advertising campaign in 1924 after the brewery employed German brewer, Alhois William Leitner.

[2] The advertising included a depiction of a little man wearing a suit with a smile, a wink and a boater hat.

Over the years bottle labels have depicted steam, diesel and electric trains.

In 2009 as part of the Q150 celebrations, the XXXX Brewery was announced as one of the Q150 Icons of Queensland for its role as a "structure and engineering feat".

[9] Castlemaine's signature beer, XXXX Bitter (despite its name a lager), was introduced in 1924.