In a method for producing milk foam, in particular for the preparation of drinks that contain milk foam in a coffee machine, a gaseous medium, in particular air, is delivered to milk conveyed, and the milk/air mixture that is formed is conveyed to an outlet for milk foam or drinks containing milk foam. The consistency of the milk foam that is produced is determined here and is monitored by a regulating process and/or is changed by a setting. Even with variable conditions of use and operation, perfect quality of the milk foam that is produced is guaranteed, in which, moreover, its consistency can be changed.