Riboflavin testing is an evaluation method to ensure spray device(s) effectively apply cleaning solutions for clean in place (CIP) of process vessels. This procedure is only a spray device coverage test and should not be considered a test of vessel cleanability.
3-A Sanitary Standards define CIP as “the removal of soil from product contact surfaces in their process position by cleaning solely by circulating, spraying or flowing chemical solutions and water rinses onto and over the surfaces to be cleaned.”