This is the author accepted manuscript. The final version is available from Taylor & Francis via the DOI in this recordThe Amherst embassy has a long-standing reputation as a diplomatic failure in Britain’s early relations with China. This analysis concentrates on a greatly overlooked aspect of the Amherst mission—the controversy within the embassy’s leadership about whether to perform kowtow before the Jiaqing emperor. George Thomas Staunton, basing his arguments on some “local inside knowledge,” successfully prevailed on Amherst to refuse to kowtow. This decision directly resulted in the rejection of the embassy from Beijing. To explain this unpleasant outcome, both sides of the controversy downplayed the importance of their decision and, instead, constructed a capricious image of the Chinese emperor, which helped to lay the foundations for the deterioration of Sino–British relations in the run up to the Opium War.