Compact Dry™ ETB is a ready-to-use test method recommended for the isolation and enumeration of organisms belonging to the family Enterobacteriaceae in raw materials, finished products, or on environmental surfaces pertaining to food and related industries. Colonies from the Enterobacteriaceae group will trun red or purple due to the presence of chromogenis substances. Compact Dry™ ETB is MicroVal and NordVal approved.