An apparatus (1) for producing sterile receptacles (2), comprising: a moulding unit (13) for moulding parisons (4) starting from granules of thermoplastic material; a stretch-blowing forming unit (3) which receives the parisons (4) from the moulding unit (13), the forming unit (3) having a plurality of forming stations (5) in each of which there is a mould (6) and a sterilisation device (12) so as to form and sterilise the corresponding parison (4).