Abstract: Method and apparatus for sanitizing a foodstuff (100) contaminated with mycotoxins. The method comprises the steps of: placing the foodstuff (100) inside a reaction chamber (20), generating an aeriform fluid comprising ozone and conveying the aeriform fluid, feeding it into the reaction chamber (20) to degrade at least part of the contaminant mycotoxin molecules, checking the temperature of the inactivation reaction. The apparatus (1) comprises means for the generation of an aeriform fluid comprising ozone (3), a reaction chamber (20) intended to contain a foodstuff (100) contaminated with mycotoxins, means for conveying the aeriform fluid to the reaction chamber (20) and means for controlling the temperature (5) inside the reaction chamber (20).