Foamed product dispensing system, product container, and product dispensing method

A foamed product dispensing system, wherein the system comprises:

• (i) a product dispensing machine, configured to receive an exchangeable product container;
• (ii) a product container, configured to cooperate with the product dispensing machine, after placement in the machine;
• wherein the product container is capable of comprising a foamable product,
• wherein the product container has a product processing unit (PPU) comprising at least one frothing device having a product entrance for receiving product and a product exit for discharging product, wherein the PPU is connectable to a gas supply for supplying gas to the product,
• wherein the PPU comprises a processing device arranged downstream of the frothing device and configured for performing a mixing treatment and/or pressure reduction treatment of the product provided with gas,
• wherein the PPU comprises a product feedthrough channel (PFC) upstream of the at least one frothing device, the PFC comprising a valve for controlling product flow towards the frothing device, the valve having a valve seat that is closable by distal section of a respective valve body, the distal section of the valve body carrying a first sealing structure, the valve seat having a substantially cylindrical inner wall for slidingly and sealingly engaging the first sealing structure at at least two different axial closing positions of the valve body with respect to the valve seat.