Cleaning & Disinfection

What is the difference between cleaning and disinfection?

• AThey mean the same thing
• BCleaning removes dirt; disinfection kills microorganisms✓
• CDisinfection removes dirt; cleaning kills germs
• DOne is more important than the other

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 (raw meat), green (vegetables), white (dairy)
• BRed (meat), yellow (poultry), green (vegetables), white (dairy), blue (fish)✓
• CAny colour, as long as they're labelled
• DJust one colour for all foods

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?

• AJust wipe and spray
• BPre-rinse, wash, rinse, disinfect, rinse, dry✓
• CSpray and wipe
• DCold water only

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
• DNot really important

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?

• ANothing—just use it
• BCheck the label, follow dilution instructions, and ensure it's food-safe✓
• CDilute with more water
• DTest on food first

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?

• AA quick rinse with water
• BPre-rinse, wash with detergent, rinse, disinfect, rinse, dry (six-stage process)✓
• CJust wipe with a cloth
• DSoak overnight

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
• BCleaning followed by disinfection✓
• CWet cleaning followed by dry cleaning
• DQuick clean then deep clean monthly

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 day
• BOnce a week
• CBetween different food types, especially before switching to ready-to-eat foods✓
• DNever—just change gloves

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
• BTo remove loose food debris and reduce cleaning chemical needed✓
• CTo add water
• DTo waste 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?

• AUse the same equipment for all areas
• BAssign different colours to different areas; store separately; wash regularly✓
• CDon't worry about it
• DUse each item until it wears out

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?

• A10 ppm
• B50 ppm
• C100-150 ppm✓
• D500 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?

• AWipe up and continue
• BWipe with a cloth and spray some sanitizer
• CClean with detergent, disinfect, rinse, dry; use appropriate PPE; dispose of waste safely✓
• 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.