LONDON (AP) — An American scientist has sparked a trans-Atlantic tempest in a teapot by offering Britain advice on its favorite hot beverage. Bryn Mawr College chemistry professor Michelle Francl says one of the keys to a perfect cup of tea is a pinch of salt. The tip is included in Francl’s book “Steeped: The Chemistry of Tea,” published Wednesday by the Royal Society of Chemistry. Not since the Boston Tea Party has mixing tea with salt water roiled the Anglo-American relationship so much. On the Chemistry World site, Francl said writing the book had “enhanced my enjoyment of a cup of tea” but noted “there were several disquieting discoveries along the way."

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Persons: Michelle Francl, ”, boors, Debrett’s, “, Francl, – Organizations: Bryn Mawr College, Royal Society of Chemistry, Boston Tea Party, Twitter, Embassy Locations: An American, Britain, London, States, U.S