Jacksons of Piccadilly is a London

London

London is the capital city of :England and the :United Kingdom, the largest metropolitan area in the United Kingdom, and the largest urban zone in the European Union by most measures. Located on the River Thames, London has been a major settlement for two millennia, its history going back to its...

 tea

Tea

Tea is an aromatic beverage prepared by adding cured leaves of the Camellia sinensis plant to hot water. The term also refers to the plant itself. After water, tea is the most widely consumed beverage in the world...

 house, begun by Robert Jackson in 1815. It has earned several Royal Warrant

Royal Warrant

Royal warrants of appointment have been issued for centuries to those who supply goods or services to a royal court or certain royal personages. The warrant enables the supplier to advertise the fact that they supply to the royal family, so lending prestige to the supplier...

s, from Queen Victoria, King George V and numerous other royals through the 19th and 20th centuries. The company also claims (although this is contested) to have invented the “original” recipe for Earl Grey tea

Earl Grey tea

Earl Grey tea is a tea blend with a distinctive flavour and aroma derived from the addition of oil extracted from the rind of the bergamot orange, a fragrant citrus fruit....

, Lord Grey

Charles Grey, 2nd Earl Grey

Charles Grey, 2nd Earl Grey, KG, PC , known as Viscount Howick between 1806 and 1807, was Prime Minister of the United Kingdom of Great Britain and Ireland from 22 November 1830 to 16 July 1834. A member of the Whig Party, he backed significant reform of the British government and was among the...

having given the recipe to Robert Jackson & Co. partner George Charlton in 1830. According to Jacksons, the original recipe has been in constant production and has never left their hands. Theirs has been based on China tea since the beginning.