A selective and differential medium for the selection of Gram-negative bacteria and differentiation of lactose and non-lactose fermenting organisms. Lactose fermenting organisms produce colored colonies while non-lactose fermenting organisms grow as colorless colonies. E. coli colonies display a characteristic green sheen aiding in identification. 500 g EMB (Levine) Agar Use 36 grams with 1 liter of water. DOT Info: Non-regulated