Speaking about the issue of independent retailers being charged for waste collection, Allan Kane, general manager of waste services at disposal company NWH Group, told betterRetailing: “We are educating more customers on waste separation. Private companies have a limit on the weight of waste in bins and charge for going over this.”

He added: “Glass, cardboard or food can be heavy, and mixing them can add to the weight. Some companies also charge for separating these items.”

Midlothian-based NWH Group currently works with 200 convenience stores across Scotland and north-east England on waste separation.

At the end of last year, biscuit manufacturer Pladis launched a waste collection initiative for retailers in 500 locations across the UK.

Read more: Find out why reducing waste is key to retailer Dan Brown’s food-to-go strategy.