A liquid container of the present invention is designed to include an autonomous selective cooling device. The cooling device includes a heat exchanger (15) comprising a first body (20) with a cavity (21), a second body (22) inside the cavity (21), a fluid passage (25) formed between an outer surface of the second body (22) and the surface of the cavity (21), and some means for causing a cooling fluid to flow while expanding along fluid passage (25) up to an exhaust duct (19) of the second\0.8body (22). A container (10) comprises a cavity for a liquid, a first filling opening (11) provided with a first closing element and a second opening (12) with a first coupling element (12a) where a second coupling element (13a) is coupled to the second coupling element (13a) being formed at an extension of a second closure cap (13) and connected to the heat exchanger (15), in such a way that the closure cap (13) closes the second opening (12) of the container (10) and the heat exchanger (15) is housed in the cavity (10a) of the container (10) and in contact with the liquid contained in it.