This tea set, made of terra cotta, is best used for strong tea. The reason being is that porous pots retain the flavour of previous seeped tea. Actually you should have separate pots for teas based on: smoked teas, non-smoked, lighter teas, herbal and green. Using separate pots maintain consistency in the flavour of your favourite brew. China and porcelain pots are best used for oolong and green teas.