The Queen was left intrigued by self-service checkouts during a visit to a pop-up Sainsbury's store this morning.
The monarch, 93, was shown the technology during a visit to a central London shop, which has been built to celebrate the chain's 150th anniversary.
She immediately wondered if customers were able to leave without paying, asking: 'You can’t cheat then?'
When told that many shoppers enjoyed the convenience of the speedy checkouts, the Queen added: 'I'm sure they do. Everybody wants to hurry.'
The Queen was talked through the technology of a self-service checkout during her visit today, pictured. A member of staff also showed the Queen an example of the retailer's reusable bags for life, which were introduced to reduce plastic waste
The Queen was shown the technology during a visit to the pop-up Sainsbury's built to mark Sainsbury's 150th anniversary
The Queen speaks to an actor in the role of an early Sainsbury's shopkeeper. The supermarket sold just butter, milk and eggs when it first opened its doors in 1869. The Queen's great-great grandmother Queen Victoria was on the throne at the time
The Queen looks at meats on display during a visit to an old-fashioned butcher's counter on a visit to the London pop-up
The Queen looked elegant in a mint green coat and matching hat for the outing in central London this morning
The Queen flicks through a ration book like the ones that would have been used by Sainsbury's shoppers during wartime
The Queen was also told how some shoppers can now use a phone app to pay without visiting the till. 'That’s an interesting tool,' she noted.
The monarch, who last visited a supermarket with Prince Charles on a royal visit in 2016, appeared in excellent spirits as she arrived at the pop-up store. She donned a mint green coat and matching hat for the outing.
The shop's exterior is designed to look like the supermarket's first branch, which opened its doors on Drury Lane in 1869.
When it first opened, the shop sold only butter, milk and eggs. The Queen's great-great-grandmother Queen Victoria was on the throne at the time.
The pop-up shop is designed to take visitors on a journey through Sainsbury's 150 year history. Pictured, the Queen exploring the space during her visit today. The monarch appeared particularly taken with the technology of the self-service checkout
The Queen was left intrigued by self-service checkouts during a visit to a pop-up Sainsbury's store this morning
The Queen looked at the sausages and bacon on display at one of the retro shop counters inside the Sainsbury's store
The Queen, who does not go to the supermarket herself, was talked through the different