Rotatable-drum laundry drier and method of controlling a rotatable-drum laundry drier

Method for controlling a rotatable-drum laundry drier to dry laundry in a drum, the control method comprising the steps of: - memorizing a in a memory device of said laundry drier a comparison threshold variable in time according to a predetermined profile, and - at predetermined drying times in the laundry drying cycle: - measuring an electric quantity indicating the moisture in the laundry at the drying time; - comparing, at each drying time, the measured electric quantity with the memorized comparison threshold corresponding to the drying time; - determining the end of drying cycle time on the basis of this comparison.