These plum blossoms teapots are lovely, good for their worth. When i bought them, they cost little money. But over the many years of using them to brew tea, a glossy shine developed on the pots.
All Yixing teapots have this characteristic. As the pots are not glazed on the outside, years of using them will develop the shine on the teapots. You need to wipe the teapots constantly after the tea making sessions. There is no short cut. It is hard work but i enjoy taking good care of them.