Level 3 Food Safety Certificate Cleaning and Disinfection Procedures Questions and Answers

Question 1

A supervisor introduces a new concentrated cleaning chemical. Under the Control of Substances Hazardous to Health Regulations 2002 (COSHH), what is the supervisor's most important initial responsibility before the chemical is used?

Accepted Answer

Conduct a specific risk assessment for the substance and ensure the Safety Data Sheet (SDS) is available to staff.

Answer

Under COSHH, the first legal duty for an employer is to assess the risks to health from any hazardous substance before it is used. This involves a formal risk assessment, which uses information from the manufacturer's Safety Data Sheet (SDS). Training, storage, and control measures are all essential follow-up actions based on the findings of this initial assessment.

Question 2

A food business needs to purchase a new disinfectant for use on food preparation surfaces. To comply with UK food safety standards and ensure it is effective against bacteria, which of the following standards should the product meet?

Accepted Answer

BS EN 1276 or BS EN 13697

Answer

BS EN 1276 and BS EN 13697 are the official European standards that prove a disinfectant has the required bactericidal activity for use in food, industrial, and institutional areas. BS EN 14476 relates to virucidal activity, while ISO 9001 is a quality management standard and BS 31100 is for risk management.

Question 3

A kitchen porter is tasked with thoroughly cleaning and disinfecting a commercial meat slicer. According to the recommended six-stage cleaning process, what is the correct sequence of actions after the initial pre-clean (removing loose debris)?

Accepted Answer

Main clean with detergent, rinse, disinfect, final rinse, air dry.

Answer

The correct six-stage process is: Pre-clean, Main Clean, Rinse, Disinfection, Final Rinse, and Dry. A detergent must be used first (Main Clean) to remove grease and food particles, as disinfectants are ineffective on dirty surfaces. This is followed by a rinse to remove the detergent, then application of the disinfectant for the required contact time, a final rinse to remove the disinfectant (if required), and finally, allowing the equipment to air dry to prevent recontamination.

Question 4

Which of the following is the most critical piece of information to include on a comprehensive cleaning schedule for a food business?

Accepted Answer

The specific dilution rates for chemicals and the required contact time for disinfectants.

Answer

For cleaning to be effective, especially disinfection, staff must use chemicals at the correct concentration and leave them on the surface for the required contact time to kill bacteria. This information is vital for the schedule to be an effective food safety control document. Other details like who is responsible and the frequency are also crucial, but the precise instructions for chemical use are most critical for efficacy.

Question 5

In the context of a two-stage clean, what is the primary purpose of using a detergent?

Accepted Answer

To break down and remove grease, food particles, and other soils from a surface.

Answer

A detergent's function is to clean by removing physical dirt, grease, and food residues. It does not kill bacteria effectively. Disinfection (A) is the role of a disinfectant, which is the second stage of the cleaning process. Sterilisation (B) is a higher level of microbial destruction. A product combining both actions (C) is known as a sanitiser.

Level 3 Food Safety Practice Test

Level 3 Food Safety Practice Test

Level 3 Food Safety Certificate Cleaning and Disinfection Procedures Questions and Answers