Fluid Thioglycollate Medium is used for rapid cultivation of aerobes as well as anaerobes by adding a reducing agent and small amount of agar. The European Pharmacopoeia, USP, BP and AOAC have recommended the media for sterility testing of antibiotics, biologicals and foods and for determining the phenol coefficient and sporicidal effect of disinfectants. However, it is intended for the examination of clear liquid or water-soluble materials.