EcoPure Food Safety Systems has been granted US patent 6200618 for its Cold process for disinfection of foods and ingredients which uses ozone in conjunction with surfactants. High Temperature Pasteurisation (HTP) and ozone are the only two means which guarantee complete elimination of all microorganisms including Bacteria, Virus, Fungus, and Protozoa. Unlike HTP, Ozone 'does not affect the flavor and texture of the food'.