A tank (101) for a beverage dispensing appliance includes at least one water chamber (102), a first opening (104) for example for connecting the tank (101) to a beverage supply, at least one second opening (105) for example suitable for attaching to a tap for dispensing beverages, as well as a filter (107) attached to the second opening (105) of the tank (101). An appliance including such a removable tank (101) is also described.