Why clean before sanitising?

Dirt and grease stop sanitiser working, so the surface must be cleaned first.

How should cleaning chemicals be stored?

Below and away from food, clearly labelled in suitable containers — never in unlabelled drink bottles.

How can I revise cleaning & sanitising quickly?

Use topic-drill mode for cleaning & sanitising and read the explanation on every question you miss, then re-test. Flashcards and a full 40-question practice test help the knowledge stick before your assessment.

Cleaning & Sanitising

Cleaning and sanitising are two different steps. Cleaning removes visible dirt and grease; sanitising reduces bacteria to a safe level. You must clean first, then sanitise.

Food-contact surfaces need both, on a documented schedule.

The correct method

Pre-clean, wash with hot water and detergent, rinse, apply sanitiser for its contact time, then air dry. Sanitiser does not work on a dirty surface, and wiping it off too soon makes it ineffective.

Chemical safety

Store chemicals below and away from food, clearly labelled — never in unlabelled drink bottles. Follow the manufacturer's dilution; stronger is not better and can leave harmful residue.

How to revise cleaning & sanitising for the exam

Nail the clean-then-sanitise order and the idea of sanitiser contact time, which catch many people out. The questions are usually scenario-based, so practise applying the rule rather than just reciting it. Work through the Cleaning & Sanitising drill below until you can answer without hesitating, review anything you get wrong, then sit a full timed test to confirm you are exam-ready.

Common exam traps

A surface that looks clean can still carry bacteria — sanitising is still required.
Detergent cleans but does not sanitise.
Sanitiser needs contact time — don't wipe it straight off.

Cleaning & Sanitising FAQ

What is the difference between cleaning and sanitising?+: Cleaning removes dirt and grease; sanitising reduces bacteria to a safe level. Clean first, then sanitise.
Why clean before sanitising?+: Dirt and grease stop sanitiser working, so the surface must be cleaned first.
How should cleaning chemicals be stored?+: Below and away from food, clearly labelled in suitable containers — never in unlabelled drink bottles.
How can I revise cleaning & sanitising quickly?+: Use topic-drill mode for cleaning & sanitising and read the explanation on every question you miss, then re-test. Flashcards and a full 40-question practice test help the knowledge stick before your assessment.

Ready to test yourself?

Drill cleaning & sanitising questions, or take a full 40-question practice test. Instant feedback, no sign-up.

Start Cleaning & Sanitising drill Full practice test

Study all 12 topics

Food Standards Code & Legislation Food Handler Responsibilities Temperature & Danger Zone Cross Contamination Personal Hygiene Allergen Management Food Storage & Labelling Pest Control HACCP Basics Food Safety Supervisor Duties High-Risk Foods & Vulnerable Groups

Written and reviewed by the Food Safety Practice AU editorial team. Last reviewed June 2026. Based on the Food Standards Code (FSANZ) and Australian state/territory food authorities. General guidance only — not official certification.