People in East Riding are being encouraged to put food waste in their brown wheelie bins for recycling.
All the food and garden waste collected from residents' brown bins is recycled into compost, however almost a third of waste in green bins in the East Riding is still food waste.
The council is now carrying out a series of trials to help spread the message and urge residents to use their brown bins instead.
From today, waste and recycling teams will be placing tags on the green household waste bins of around 4,000 properties in the areas as a polite reminder to residents not to put food waste inside - and instead place it in their brown bin.
A similar trial carried out in Bridlington earlier this year resulted in an average decrease of around 1kg of waste each week per household in the green bin.
Brown bins should be used for food and garden waste, including cooked and uncooked food, fruit and vegetable peelings, plate scrapings, bones and carcases, meat and egg shells, as well as grass cuttings, hedge trimmings, small branches, leaves, flowers and weeds.
The council is encouraging residents to put their brown bins out for collection every fortnight no matter how much waste is inside.