Use Fraser Broth Base for making Fraser and Fraser 1/2 Broths. With the addition of the supplement, use Fraser 1/2 Broth as a selective enrichment medium for the growth of Listeria, including Listeria monocytogenes, in products intended for human and animal consumption. The supplemented broth can be used as a primary enrichment step for the identification and enumeration using RAPID'L.mono or RAPID'Listeria spp. Agar Plates. Fraser 1/2 Broth without the supplement can be used for recovery of bacteria after sublethal injury caused by heat, preservatives, or other processing techniques. Related Products Fraser 1/2 Strength Supplement (3564616) Fraser 1/2 Broth, ready to use (3555797) RAPID'L.mono Agar Plates (3563694), dehydrated base (3564293), and Supplements 1 (3564294) and 2 (3564296) RAPID'Listeria spp. Agar Base, dehydrated (3564744), RAPID'Listeria spp. Supplements 1 (3564745) and 2 (3564746)