Beverage machine user interface

A beverage forming system comprising:

• a liquid supply arranged to provide a liquid for forming a beverage;
• a beverage forming station arranged to hold a beverage material for mixing with the liquid to form a beverage;
• a liquid conditioner arranged to heat or cool the liquid that is provided to the beverage forming station;
• a control circuit arranged to control the liquid supply and the liquid conditioner to operate automatically according to one or more brew parameters during a dispensing operation to deliver heated or cooled liquid to the beverage forming station to form the beverage, the control circuit including a user interface arranged to provide a user-adjustable indication of at least one brew parameter and to receive a command from a user to adjust the at least one brew parameter, and the control circuit being adapted to limit the command from the user to adjust the at least one brew parameter to be between a minimum value for the at least one brew parameter and a limited value that is below a maximum value for the at least one brew parameter, or between a limited value that is above the minimum value and the maximum value for the at least one brew parameter;
• and
• a touch screen interface, wherein the user-adjustable indication is displayed on the touch screen interface.