Supervalu is to launch a reusable, compostable shopping bag as part of efforts to reduce the amount of plastic used in its shops.

The retailer claims to be the first in Ireland to sell this kind of product, which could take 2.5 million plastic bags out of circulation.

The bag will sell for 89c and is designed to be reused, however it can also be disposed of in a household compost bin once it is no longer fit-for-purpose.

Supervalu last year replaced plastic fruit and vegetable bags with compostable options. It aims to have all of its own brand products in recyclable, reusable or compostable packaging by 2025.

"Our customers expect Supervalu to help them make more sustainable choices and we're committed to doing just that," said Supervalu managing director Martin Kelleher. "Reducing our environmental impact on the planet is a core focus of our overall strategy to help build sustainable communities and we have already made significant steps forward in this area."

Meanwhile, brewer Molson Coors is to remove plastic film wrap packaging from multipacks of its Carling and Coors Light brands by the end of March next year.

Instead of the plastic, 100% recyclable carton boards will be used.

Plastic rings will be removed from Carling and Coors Light cans by the end of March 2021, with cardboard sleeves to be used instead.

The changes will cost €8.1 million over the next two years to implement.