Fuente: WIPO "tomato" There is described a method for producing sealed packages (2) containing a pourable product, the method comprises the steps of: a) advancing a web (4) of packaging material along an advancing path (P); b) folding the web (4) into a tube (3); c) filling the tube (3) with the pourable product by means of a filling device (7); d) detecting a deviation or anomaly at the web (4) indicative of the state of the packaging material; e) adjusting the operation of the filling device (7) as a function of the detection.