Final answer:
The step not included in the three-sink cleaning process is Drying (D). The three steps are Washing, Rinsing, and Sanitizing. Drying is not part of this sanitizing process and is performed afterwards.
Step-by-step explanation:
The step that is NOT part of the three-sink cleaning process is D. Drying. The three-sink cleaning process typically includes the steps of A. Washing, B. Rinsing, and C. Sanitizing. Washing entails using detergent and warm water to remove visible soil and residue from dishes or food equipment. Rinsing with clean water removes any remaining detergent and particles. Sanitizing involves the use of chemicals, or sometimes hot water, to reduce the number of microorganisms to safe levels as defined by public health standards. Drying is usually done after these steps and isn't considered part of the sanitizing process.
For example, in a scenario where someone just rinses lunch dishes with water and notices an oily film upon drying, it demonstrates why water alone is not effective. Water without detergent doesn't break down oily substances due to their nonpolar nature, which does not mix well with water, a polar solvent. Therefore, to effectively clean and remove oily residue, a detergent or soap must be used in the washing step to emulsify and remove the oil.