Work with grass packaging has already been taking place in Mona, Anglesey, to create the trays. And research by Bangor University has developed egg boxes from grass, which are now being used by the supermarket Waitrose.

“All of the UK supermarket retailers are desperate to solve the problem around single-use plastics,” added Charlton, hinting at the potential to continue trialling grass packaging.

In 2018, 42 UK supermarkets signed up to the UK Plastics Pact – an industry-wide initiative to transform packaging and reduce avoidable plastic waste. However, these retailers have been criticised for not taking strong enough action to tackle the issue at an earlier stage.

Perhaps this will be the next innovative step that they take.

‘Grass packaging’ could be the next eco-trend to replace single-use plastic