The descaling agent does what he should and quite thoroughly, always leave 2 liters of water with the appropriate amount of descaling agent durchlafen in descaling, then sink again after about with 0,8l. Subsequently, the pressure is again as it should be, the crema of the coffee's is again much better and also the milk is foamy again. I've been using this product for over a year on a regular basis in an old Braun Tassimo and in the newer Bosch without any problems and can recommend it for all Tassimo users.