King Charles shared his love for sustainable food and farming, during a visit to Yorkshire.
His Royal Highness was making his first appearance in the county as monarch which included a visit to the Bradford headquarters of supermarket Morrisons.
After being welcomed by applauding staff, King Charles delivered a short speech before meeting producers keen to discuss their sustainability credentials with the King, who has long championed a more environmentally-friendly way of farming.
Claire Anderson, commercial manager of Chippendale Foods, which supplies Planet Friendly eggs to Morrisons as part of the retailers carbon neutral egg scheme, was one of the producers selected to speak to the royal visitor.
She told reporters that King Charles looked intrigued by how the eggs get their carbon-neutral status, which she said she explained to him revealing that they are fed on black soldier fly larvae, which themselves feed on waste products from the supermarket operation.
Ms Anderson said the King had also inquired about the avian influenza outbreak, asking whether all Ms Andersons birds were being kept indoors.
While there, King Charles also spoke to members of Morrisons Farming, Community, Sustainability and Apprenticeship programmes, as well as farmers from The Princes Countryside Fund (PCF), a charity founded by HM The King and supported by Morrisons.
His Majesty was accompanied throughout the visit by the retailers chief executive, David Potts CBE who discussed initiatives including Morrisons rare breed programme.
Mr Potts said: It was a great honour for Morrisons to host His Majesty today. The King is so passionate about British food and farming and it was a great privilege for us to hear his perspectives and for our colleagues to share with him our story as a foodmaker and shopkeeper.
We were also very pleased to discuss with His Majesty some of our work in farming and sustainability including our partnership with The Princes Countryside Fund which makes a real difference to farming families across rural Britain.