A zero waste shop won an ethical business award in Wales on Wednesday night, highlighting a growing trend among retailers to cut plastic use as worry over its environmental impact rises.

Judges praised Natural Weigh in south Wales for educating people about the dangers of single-use plastic and for providing a solution to minimize its use — by asking customers to bring their own containers to buy food by weight.

"They have entered the market at a time when it is both topical and of importance to people," said Chris James, chairman of the judging panel for the Social Business Wales Awards, which recognizes firms that seek to do good and make a profit.