They did drink tea in Narnia (Mr. Tumnus and Lucy, the Beavers and the Pevensies, and Father Christmas gives the Beavers and Pevensies some tea). Tea is a favorite British beverage, so CS Lewis would have known about tea.
They did drink tea in Narnia (Mr. Tumnus and Lucy, the Beavers and the Pevensies, and Father Christmas gives the Beavers and Pevensies some tea). Tea is a favorite British beverage, so CS Lewis would have known about tea.