Cleaning & Disinfection

What is the difference between cleaning and disinfection?

• AThey mean the same thing
• BOne is more important than the other
• CDisinfection removes visible dirt, while cleaning kills the microorganisms
• DCleaning removes dirt; disinfection kills microorganisms✓

Answer: Cleaning removes visible dirt and food residue. Disinfection kills microorganisms. Both are essential and often done in sequence (two-stage cleaning).

What are the standard colours for chopping boards in UK food businesses?

• ARed (meat), yellow (poultry), green (vegetables), white (dairy), blue (fish)✓
• BAny colour, as long as they're labelled
• CJust one colour for all foods
• DRed (raw meat), green (vegetables), white (dairy)

Answer: UK food businesses typically use: Red (raw meat), Yellow (poultry), Green (vegetables), White (dairy/bread), Blue (fish). This prevents cross-contamination.

What is the typical six-stage cleaning process?

• AA single wash in cold water with detergent added
• BSpray and wipe
• CPre-rinse, wash, rinse, disinfect, rinse, dry✓
• DWipe the surface, then spray it with disinfectant and leave

Answer: The six-stage process is: 1) Pre-rinse to remove loose debris, 2) Wash with detergent to remove grease/dirt, 3) Rinse away detergent, 4) Disinfect, 5) Rinse disinfectant, 6) Dry.

What is a 'cleaning schedule' and why is it important?

• AA decorative chart on the wall
• BA documented plan showing what, when, and by whom cleaning is done✓
• COnly important for large businesses
• DA minor administrative detail

Answer: A cleaning schedule is a documented plan specifying which areas/equipment need cleaning, how often, and who is responsible. It ensures consistent hygiene.

What should be done before using a cleaning chemical in a food area?

• AUse it straight from the bottle, since all cleaning products sold for kitchens are ready to use
• BCheck the label, follow dilution instructions, and ensure it's food-safe✓
• CTest a small amount on a portion of food to check that it leaves no taste
• DDilute it with far more water than the label states so that it is gentler

Answer: All cleaning chemicals must be checked for food-safe approval, properly diluted according to instructions, and used according to manufacturer guidelines.

How should chopping boards be cleaned after use?

• AJust wipe with a cloth
• BPre-rinse, wash with detergent, rinse, disinfect, rinse, dry (six-stage process)✓
• CSoak overnight
• DA quick rinse with water

Answer: Chopping boards must undergo the full six-stage cleaning process to remove food debris and kill microorganisms, especially after raw meat use.

What is a 'two-stage cleaning' approach?

• AClean twice daily
• BWet cleaning followed by dry cleaning
• CQuick clean then deep clean
• DCleaning followed by disinfection✓

Answer: Two-stage cleaning is a simplified version of six-stage: Stage 1 (cleaning with detergent to remove dirt), Stage 2 (disinfection to kill organisms).

When should food contact surfaces be cleaned?

• AOnce a week
• BThey do not need cleaning as long as staff change their gloves between each task
• COnce a day
• DBetween different food types, especially before switching to ready-to-eat foods✓

Answer: Food contact surfaces must be cleaned (and disinfected) between different foods, especially when moving from raw to ready-to-eat foods.

What is the purpose of a 'pre-rinse' step in the cleaning process?

• ATo disinfect the surface so that the detergent wash step can be left out
• BTo waste water
• CTo remove loose food debris and reduce cleaning chemical needed✓
• DTo add water

Answer: Pre-rinsing removes loose food debris, making the subsequent wash and disinfection steps more effective and efficient.

How should cleaning equipment (mops, cloths, brushes) be managed to prevent cross-contamination?

• AAssign different colours to different areas; store separately; wash regularly✓
• BUse each mop, cloth and brush until it wears out, then replace it with a new one
• CThere is no need to manage cleaning equipment, as detergent kills anything on it
• DUse the same mop and cloths in every area, rinsing them in hot water between rooms

Answer: Cleaning equipment should be colour-coded by area, stored separately, and washed/disinfected regularly to prevent cross-contamination.

What concentration of bleach is typically used for disinfecting food preparation surfaces?

• A50 ppm
• B500 ppm
• C10 ppm
• D100-150 ppm✓

Answer: 100-150 ppm available chlorine is the standard for food preparation surface disinfection. Too low is ineffective; too high may leave residues.

How should a spill of raw meat blood be managed?

• AClean with detergent, disinfect, rinse, dry; use appropriate PPE; dispose of waste safely✓
• BWipe up and continue
• CWipe with a cloth and spray some sanitiser
• DJust leave it

Answer: Raw meat spills require: don appropriate gloves/clothing, clean with detergent, disinfect thoroughly, rinse, dry, and dispose of waste in appropriate containers.

What is a 'cleaning record' and why is it important?

• AA nice-to-have document that helps managers plan staff rotas more efficiently
• BA record that only needs to be written up on the day an inspection is announced
• CDocumentation of cleaning activities showing compliance with food safety law✓
• DOptional good practice

Answer: Cleaning records document what was cleaned, when, by whom, and how. They demonstrate compliance with Food Hygiene Regulations and are required by law.

Should cleaning chemicals be stored near food?

• AIn a separate cupboard in the kitchen next to the dry goods
• BYes, provided only small quantities are kept beside the food
• CNo; they must be stored in a separate, locked area✓
• DYes, for easy access

Answer: Cleaning chemicals must be stored in a separate, locked, secure area away from all food and food contact surfaces.

What should be done if a cleaning chemical is spilled in a food preparation area?

• APour plenty of water over the spill to dilute the chemical, mop the area dry with a kitchen cloth and carry on working
• BReport it; evacuate the area; use appropriate PPE; clean thoroughly; disinfect; and do not use until safe✓
• CWipe it up in the normal way with a disposable cloth, then put the cloth straight into the general kitchen waste bin
• DContinue working around the spill until the end of service, then clean it up during the evening close-down routine

Answer: Any chemical spill requires evacuation, appropriate PPE, thorough decontamination, and the area must not be used for food preparation until verified as safe.

How should high-touch surfaces (door handles, light switches) be cleaned in a food business?

• ARegularly throughout the day, especially high-risk areas✓
• BOnly when they are visibly dirty or marked by customers' hands
• CRoutine cleaning of these can be skipped
• DOnce a week

Answer: High-touch surfaces should be cleaned and disinfected regularly (multiple times daily) as they're vectors for cross-contamination.

What is the purpose of disinfection testing in a food business?

• APurely a record-keeping exercise
• BTo identify when equipment needs replacing or repairing
• CTo verify that disinfection procedures are effective✓
• DTo improve staff morale by rewarding the best cleaning team

Answer: Testing (e.g., ATP testing, swab testing) verifies that cleaning and disinfection procedures are working effectively to reduce microbial contamination.

Should food preparation areas be cleaned during food service?

• ANo, because cleaning during service disrupts the flow of orders
• BOnly at the end of the day, when the last customers have left
• CCleaning should be carried out only when the premises are closed
• DYes—maintain continuous hygiene through the shift✓

Answer: Continuous cleaning during service is essential. High-touch areas and food contact surfaces must be cleaned regularly throughout the day.

How often should kitchen floors be cleaned in a food business?

• AOnce a week, with a spot mop if something is spilled
• BOnce a month as part of the deep-clean routine
• CDaily; more frequently in high-traffic areas✓
• DNever

Answer: Floors should be cleaned daily, with high-traffic areas cleaned more frequently. Dirty floors attract pests and spread contamination.

What is the significance of colour-coding chopping boards in relation to the Food Safety Act 1990?

• AIt's a requirement to prevent cross-contamination and maintain food safety compliance✓
• BIt applies only to restaurants and hotels, not to takeaways, cafes or other food businesses
• CIt's optional
• DIt is purely aesthetic and helps staff find the board they prefer to work with quickly

Answer: Colour-coding is a requirement of the Food Safety Act and Food Hygiene Regulations to prevent cross-contamination and ensure food safety.