In this section a brief elaboration will clear the concept of spray nozzles selection for requirement and there various factors which affects and plays vital role in extent of cleaning required.

Following some factors should well studied when selecting CIP spray nozzles.
1) Extent of Cleaning The nature of substance to be cleaned from tank should be considered like, solubility, viscosity, nature of powder / pigment material.

Based on all this factors we can decide which type of impact is necessary to flush substance from all internals of equipment. a) Rinsing : By virtue mass removal of substance and thick layers get dissolved by water or solvent b) Cleaning : After rinsing cleaning could be done with high pressure to remove rest of the residue from internal. c) High Impact Cleaning : Those substances which could not be satisfactory cleaned by means of cleaning cycle, should be treated with high pressure of cleaning fluid. d) Sanitizing : Sanitize chemical is applied after cleaning to kill microorganisms and bacteria. e) Disinfecting : Same procedure is applied for disinfectant f) Sterilizing : It kills all kinds of bacteria