The invention relates to a continuous sterilising system comprising a sterilising body (1) into which a thermal fluid is introduced for sterilising products, the products to be sterilised being arranged in containers (3) that circulate inside the sterilising body (1), said sterilising body (1) being divided into different sterilisation zones (5) by means of dividing walls (4), and each of said dividing walls (4) having a through-opening (6) that is substantially the same shape as a container (3), such that the containers (3) close the through-openings (6) of the dividing walls (4), rendering the sterilisation zones (5) thermally isolated from one another.