King Charles showed his jovial side as he stepped behind the bar at Tower Brewery in Burton upon Trent, Staffordshire, pulling a pint of the brewery's special 'Gone for a Burton' beer.
The 76-year-old monarch shared a light moment with owner John Mills, who asked if he was "going to have a slurp of that."
"If not, I'm in the wrong place," the King quipped before raising his glass with a toast: "To your very good health."
The King also sampled The Spirit of Burton, a potent 41% proof liquor, describing it as "supercharged" with a laugh.
King Charles showed his jovial side as he stepped behind the bar at Tower Brewery in Burton upon Trent, Staffordshire, pulling a pint of the brewery's special 'Gone for a Burton' beer
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During his visit to the family-run brewery, Charles learned about the town's rich brewing heritage, including how India Pale Ale became synonymous with Burton after the first shipments to India in 1822.
He departed with several bottles of IPA and a historic bottle of 1902 King's Ale.
Earlier in the day, the King was welcomed at JCB World Headquarters in Rocester with an impressive mechanical guard of honour.
The visit marked the company's 80th anniversary, with Charles touring the backhoe loader assembly line alongside chairman Lord Bamford.
King Charles departed with several bottles of IPA and a historic bottle of 1902 King's Ale
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He joined team leader Becky Bayliss, 32, in fitting wheels to one of the diggers, with Bayliss later praising his effort as "perfect."
The monarch also helped refuel a new JCB Backhoe Loader with hydrogen, demonstrating the company's commitment to innovative technology.
The royal, who was greeted by the 3,500 staff members lining the grounds and waving Union Flags as they cheered for the King, visit celebrated JCB's recent achievement of receiving a Royal Warrant and highlighted the company's position as the world's third-largest construction equipment manufacturer.
In a touching moment during the visit, Charles met 100-year-old Ken Harrison, one of the last known survivors of the original 1945 backhoe loader production line team.
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The monarch also helped refuel a new JCB Backhoe Loader with hydrogen
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"Are you sure you should be here today? I'm very impressed," the King said to Harrison, who worked at JCB for 36 years.
The monarch also joked about his birthday card system, saying: "I hope you got your message on your hundredth birthday? I'm so glad the system works."
The visit marked a significant milestone for JCB, celebrating both its 80th anniversary and the production of its one millionth backhoe loader.
The King's connection to JCB spans decades, with his first visit to the company dating back to 1977 as Prince of Wales.
