Tip of the Week

Research has identified ice machines as potential sources of Legionella bacteria

Ice machines operate at temperatures below 20°C (safe temperature to avoid legionella) so you would think they would be safe.  However, ice machines contain a mechanical compressor which gives off heat that may warm the water inside the machine, allowing Legionella and other bacteria to grow.  Research has indicated that, while Legionella bacteria is dormant at low temperatures, it can become active if it is present in ice which subsequently thaws.

To avoid any bacteria growth within your ice machine we recommend the following:-

  • Empty your ice machine every week and clean and sanitise the inside.  Pay attention to cleaning the ice chute and any ice curtains
  • Keep your ice scoop out of the machine.  Store handle up in a container of sanitiser.  Wash the ice scoop daily as contamination from hands is one of the biggest causes of cross contamination


Having an ice machine Weekly Cleaning Schedule attached to the side of your machine will help ensure your cleaning regime is implemented.

Weekly Food Fact

Ever wondered what makes some ice cloudy? It’s due to tiny, trapped air bubbles which refract the light. Water expands as it freezes, and freezes from the outside in, so the air is pushed to the centre of the cube, which is why ice cubes can have an opaque centre.