Certified Professional Food Safety (CP-FS) Practice Exam

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Which of the following is a characteristic of quaternary ammonium sanitizing solutions?

They must be used at room temperature
They must be applied in specific concentrations as indicated by the manufacturer's label
They must only be used for floor cleaning
They must be effective against viruses

The correct answer is: They must be applied in specific concentrations as indicated by the manufacturer's label

Quaternary ammonium compounds, commonly referred to as quats, are widely used as sanitizing solutions in food safety due to their effectiveness and versatility. One of the essential characteristics of these sanitizing solutions is that they must be applied in specific concentrations as indicated by the manufacturer's label. This is crucial because the effectiveness of quats in killing bacteria, fungi, and other pathogens is directly related to the concentration used. Using them at the wrong concentration can lead to insufficient sanitization or damage to surfaces. Proper adherence to the manufacturer's instructions ensures that the sanitizing solution performs effectively, minimizing the risk of foodborne illnesses and maintaining a safe environment. Therefore, following the specified concentration is essential in achieving the desired antimicrobial action while ensuring safety for food contact surfaces.