Tea ladies entered the mainstream in the UK during the Second World War, when they were used in an experiment to boost efficiency in workplaces for the war effort. They had such a hugely positive effect on morale they became commonplace in all areas of work, mobile canteens even serving military units on exercises. They were present in a works canteen or perhaps came round with a trolley, on which was usually a tea urn full of either hot tea or hot water, and perhaps a selection of cakes and buns.
Decline
This occupation began to die out in the late 1970s to early 1980s when tea ladies began to be replaced by private catering firms and vending machines, as businesses expanded and women moved into different jobs. The tradition of the tea break, from which the role of tea lady rose, has itself declined, also offering a possible explanation why tea ladies are not commonly found today. In Britain, market research in 2005 showed that of those workers who drank more than four cups of tea a day, only 2% of them received it from a tea lady, whereas 66% received it from an urn, and 15% from a vending machine. In Australia, Jenny Stewart, Professor of Public Policy in the University of New South Wales, uses the decline of the tea lady as an example of "managerial solipsism": they provided civil servants with dependable "patterns of civilised sociability" at "significant economies of scale", but "they just faded away, as departments searched for easy ways of making savings".
Current role
Tea ladies still exist in the National Health Service though the job of tea attendant is no longer restricted to women workers. Some hospital tea trolleys are operated by the Royal Voluntary Service. Patients often comment on the tea ladies, and how their care made a hospital stay more bearable.
Media
In the past they were often used as stereotypical figures in British comedy, with a tea lady usually portrayed as a harassed, overweight, middle aged woman in a uniform and cap, or as a very pretty recipient of all sorts of lewd comments from the workforce, as in the film Carry On at Your Convenience. In Australia, a sitcom called The Tea Ladies aired in 1978. Tea ladies in general were a frequent target of illusory "cuts" and "economies" in Yes Minister, frequently conjured up by Nigel Hawthorne's character Sir Humphrey Appleby, but a tea lady was only once seen onscreen during the whole five-series run of the show, sharing a lift with Jim Hacker and Sir Humphrey Appleby in the episode "The Skeleton in the Cupboard".