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Her design of teapots and crockery was chosen because of its British theme and the inclusion of Yorkshire Tea.

Haidilao has apologised to customers, saying it has replaced all hotpot equipment and dining utensils, as well as disinfecting other crockery and utensils.

Only reusable cups and crockery are available to use.

Boxes and dirty crockery would be piled high on her desk, she says, and people would shout out “watermelon” as “their signal that a black person was approaching the office”.

Two hundred water, juice and soda fountains have been installed in the Olympic Village, and only reusable cups and crockery will be offered.