A beverage maker according to an embodiment of the present disclosure may include: a fermentation tank module in which an opening is defined; a fermentation lid configured to open and close the opening; a temperature controller configured to control a temperature within the fermentation tank module; and a gas discharging passage connected to at least one of the fermentation tank module or the fermentation lid. The fermentation tank module may include: a fermentation case; a fermentation tank which is accommodated in the fermentation case and in which an inner space communicating with the opening is defined; and an insulating part disposed between the fermentation case and the fermentation tank, the insulating part being configured to surround the fermentation tank.