London City’s Chief Operating Officer Alison FitzGerald said the passenger journey would be much less stressful without the hassle of unloading different items from hand luggage.

“The new process delivers a much more efficient security operation with enhanced security screening,” she said in a statement on Tuesday.

Britain introduced the 100ml liquid rule at airports in 2006 when police foiled an attack plot involving liquid explosives at Heathrow.

A handful of airports in the United States plus Amsterdam’s Schipol hub have already installed the high-tech scanners.

Britain’s biggest airport Heathrow has trialled them.