The process of design of the Brown Betty spans centuries. There is no single identifiable author and no single definitive version of the pot: it is an anonymous and evolved object. Over the years, Brown Betty has been through the hands of numerous makers, each producing their own interpretation, subtly refining and amalgamating new and original design details. The resulting teapot is a rational object stripped of anything superfluous to its function or production.

Although there is no definitive version, the manufacturers Alcock, Lindley and Bloore were responsible for cementing the archetypal features of the pot as we know them today. Some of the most recognisable features of the Brown Betty were combined during their production: the globe shape of their pot that is so efficient at infusing loose leaf tea, the roughly cut spout that breaks the flow of water, preventing tea from dribbling back down the outside of the pot, and the Rockingham glaze that concealed any dribbles that did, despite efforts, escape.