From the mid-seventeenth century onwards tea-drinking arrived in England and over the next century the English started making teapots and gradually formulated a version of porcelain that could be made into ‘china’ teapots. Originally porcelain production was a Chinese secret, but by the 1740s a form of porcelain was being produced in Britain. Chinese porcelain was very expensive and highly rated as noted by Nicholas Crisp in 1743.
The essential properties of China-ware, besides the Beauty of its Colours, are these: that it is smooth, and as easily cleaned as Glass, and at the same Time bears the hottest Liquors without danger of breaking.
Nicholas Crisp writing in the Public Advertiser in 1743
It was only natural that the innovative potters of England would want to be able to make teapots as good as the much praised China-ware. As a result of fierce, commercial competition to successfully copy these much admired Chinese imports, soft paste porcelain was developed. It was white and glossy and thinly potted to produce teapots similar in appearance to the Chinese imports. However, as soft paste porcelain is fired at relatively low temperatures some of the early teapots shattered when filled with hot water.
Some manufacturers recommended ‘Warming the Pot’. That is slowly warming a teapot to avoid it shattering. It didn’t take many years before soft porcelain was perfected and teapots became reliable receptacles for boiling water, however, ‘Warming the Pot’ persisted. I learnt the ritual from my mother without question, but I have thought, on more than one occasion, why am I doing this as boiling water poured over tea immediately makes the teapot more than warm! Well, now I know – and I won’t be warming the pot in the future! Unless somebody gives me a new plausible reason.