here's my take, a purple sandy clay teapot(a kind of yixing teapot) or stoneware teapot vs. a porcelain cover bowl,
some yixing teapots are the best money can buy and this can be expensive, so I will use a stoneware comparison and also with the porcelain cover bowl, we can also use good quality stoneware made of sandy clay which is made of different size particle and that’s what makes them good, useful and beautiful, some goes for the yixing vessels, which also have great cover bowls. We need to remember that the comparison is not only pot vs. bowl but stoneware vs. porcelain.
Stoneware teapot (unglazed)-holds heat well, some say the pot is good for flavor
Porcelain cover bowl -released heat well, some say the bowl is good for scent
To me it is like apples and oranges they are different but!!!!! Both are the same (fruits), of course to get the same results you should adjust your brewing times and brewing temperatures. One interesting fact is in some areas of china the seem to have never heard of pots for they use bowls all the time and of course they are brewing green tea, bingo! The green tea in not process much so the water temperature should be much lower than boiling 75C? , and in other areas they seem never to use a bowl, and bingo! Roasted oolongs, and the temps should be boiling which is about 95C due to steam, the pots work great because they retain heat.
icetea…