A method for decontaminating a tube of which a first open end forms an inner neck towards the inside of the tube and an outer neck towards the outside of the tube, the method including:initially raising the temperature of the tube, thensubjecting the tube to ultraviolet radiation, that includes emitting ultraviolet radiation by radiation emission apparatus, and subjecting the inside of the tube, the outer neck and the inner neck to the ultraviolet radiation, in which the first end is inserted into a cavity arranged to reflect the ultraviolet radiation emitted by the emission apparatus and to direct this ultraviolet radiation into the tube through the first end, onto the outer neck of the tube and onto the inner neck of the tube.
