example of the invention as shown in fig1 comprises a brewing unit 1 and a reception container 2 the brewing unit 1 is composed of a brewing container 3 and a filter unit 88 the filter unit 88 comprises in turn a filter insert 4 and a filter lock 5 the filter unit 88 encloses and defines the brewing chamber 65 which is filled with the beverage base substance 7 the brewing liquid 6 is located in the brewing container 3 and the finalised beverage 8 is collected in the reception container 2 the connection of all parts of the brewing unit 1 is made by the filter lock 5 which is engaged in a releasable connection with the brewing container 3 and by which the filter unit 4 is pressed against the angular shaped flange 13 of the brewing container 3 the filter lock 5 also is in a releasable connection with the reception container 2 and ensures a connection between brewing unit 1 and reception container 2 this is preferably a plug in connection and ensures that the beverage maker is held together when putting it in and out of the microwave oven and in transport the connection 48 further ensures that vapour that ascents from the finalised beverage 8 can volatilise and cannot build up a pressure within the reception container 2 the brewing container 3 forms together with the filter unit 88 a pressure container in which the required pressure for the brewing process can build up the sealing area.