The invention relates to a method for manufacturing a container (2), by drawing and blowing in a mould (8), from a blank (3) made of plastic material, which includes the following operations: inserting the blank (3) in the mould (8); controlling the opening of a pre-blowing solenoid valve (17) at a predetermined pre-blowing rate (DP); measuring the current pressure (P) inside the blank (3); detecting an actual time (tA) for starting the pre-blowing step; calculating a time (tF) for ending the pre-blowing step such that: tF=tA+Δt−δ, wherein: Δt is a predetermined time for opening the pre-blowing solenoid valve and δ is a predetermined constant; deducing therefrom an actual pressure (PF) at the end of the pre-blowing step; comparing said pressure to a theoretical pressure (Pth); and if said pressures are found to be non-identical, ordering a modification of the pre-blowing rate (DP).