‘The difference between a dish-cloth and a tea-cloth’

From chapter 7 of The Phoenix and the Carpet:

Everything was nicely washed up, and dried, and put in its proper place, and the dish-cloth washed and hung on the edge of the copper to dry, and the tea-cloth was hung on the line that goes across the scullery. (If you are a duchess’s child, or a king’s, or a person of high social position’s child, you will perhaps not know the difference between a dish-cloth and a tea-cloth; but in that case your nurse has been better instructed than you, and she will tell you all about it.)