A method of controlling vaporization of a vaporizer in an inhaler, wherein the vaporizer is heated by means of electric resistance heating, and wherein an electronic control device controls the current flow through the vaporizer, comprises the following steps: determining an initial point corresponding to the start of a draw by a consumer; taking measured values of the current applied to the vaporizer in time sequence from the initial point; determining a transition point between a range of low vaporization and a range of high vaporization in a time-dependent current measurement series corresponding to the measured values; determining a current value Iv corresponding to the transition point; setting a current interval [I1; I2] depending on the determined current value Iv; and controlling the current flow within the set current interval [I1; I2].