the foam to be firm for an extended time period about 2 hours on hot beverages the foam is also long lasting on alcoholic beverages milks carbonated products juice beverages as well as use in desserts or breakfast products like pancakes referring to fig1 through 6 the present invention includes a foam dispenser the foam dispenser includes a container 10 that contains the foamable liquid up to a liquid level 54 the container 10 may include external threads on an outer circumferential edge portion of its opening a closure 40 has a large opening which is provided in its top wall and an outer circumferential portion which is threaded internally the closure 40 is engaged threadably and sealingly with the container 10 to firmly fasten a foam dispensing pump to the container 10 the foam dispensing pump includes a housing 16 formed of a double cylinder the double cylinder includes a large air cylinder and a small liquid cylinder which are formed concentrically with each other an upper opening edge portion of the double cylinder has a fitting annular portion fitted in a locking arrangement between the container 10 and the closure 40 the present invention may further include an air piston 32 and a liquid piston 28 assembled in a concentric arrangement to each other when these pistons 32 and 28 are forced into the air cylinder and the liquid cylinder respectively at assembly a coil spring 24 is inserted between the liquid cylinder and the liquid piston 28 so that the pistons 32 28 are urged upwardly at all times by the spring 24 the housing 16 includes a cylindrical wall portion disposed below the fitting annular portion and a bottom wall portion extending diametrically inwardly from a lower end of.