Dishwashing (ware-washing) — Food Safety Glossary

The systematic washing, rinsing and sanitising of crockery, utensils and equipment so they are clean and safe to reuse.

Frequently asked questions

What is the difference between cleaning and sanitising when washing dishes?

Cleaning with detergent removes visible food, grease and dirt. Sanitising then reduces bacteria to a safe level using heat or a chemical sanitiser. Both steps are needed: a plate can look clean but still carry enough bacteria to make someone ill.

Can I wash dishes in the hand basin?

No. Under Standard 3.2.3 hand basins are for handwashing only. Ware-washing must be done in a separate sink or dishwasher so hand hygiene facilities are always available and dishes do not contaminate the basin.

How does a commercial dishwasher sanitise?

Most commercial machines sanitise with a hot final rinse that reaches a high temperature, or by dosing a chemical sanitiser. Operators should follow the manufacturer's instructions and check the machine is reaching its required settings.

Should clean dishes be towel-dried?

Air drying is preferred. A tea towel or cloth can transfer bacteria back onto clean, sanitised items. Stack items so they drain and dry naturally, and store them in a clean, protected area.

How many sink compartments do I need for manual washing?

There is no single number in the Code, but a two or three compartment setup lets you separate washing, rinsing and sanitising so clean items are not recontaminated. The premises must have adequate facilities to wash and sanitise equipment and utensils.

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