Victorian councils which already run a fortnightly rubbish collection to reduce food waste have urged other councils to follow suit, despite Premier Daniel Andrews slamming it as a "rubbish proposal".

A recommendation for councils to switch to fortnightly rather than weekly rubbish collection has been floated by a government agency investigating ways to start collection services for food scraps and garden organics.

The arrangement would see food and garden matter collected each week in the same bin for compost, while rubbish would remain in a separate bin collected fortnightly.

The idea of a fortnightly garbage collection has been floated by a state government agency. Credit:Simon Schluter

The Metropolitan Waste and Resource Recovery Group research found that a fortnightly rubbish collection would encourage households to separate food matter so it does not end up in landfill, reducing rubbish by 30 to 50 per cent.