We bought recently at auction an Imari teapot with six cups and saucers. If auction catalogue is correct, from first quarter 18th century. I'm amazed at how small (and beautiful, by the way) these pieces are. Each teacups capacity is clearly less than an ounce. Questions to the experts on the subject:
a) was tea in those times drunk very concentrated, siropy kind of stuff, therefore the small capacity, or
b) was it too expensive, or
c) did it get cold too soon, or
d) none of the above?