Iron Sulphite HiCynth™ Agar is used for detection of thermophilic anaerobic organisms causing sulphide spoilage in food. This medium can be used for detection of thermophilic anaerobic organisms causing sulphide spoilage in foods. It was shown by Beerens that 0.1% sulphite concentration in the original formula was inhibitory to some strains of Clostridium sporogenes. This medium is prepared by replacing animal and vegetable peptones with chemically defined peptones to avoid BSE/TSE risks associated with animal peptones.