Hao Shijiu was born in a porcelain family and was taught by a tutor. His porcelain-making skills are comprehensive and superb. Thin-walled porcelain is as thin as an eggshell and wonderful. The most famous ones are "Egg Curtain Cup" and "Flowing Summer War". The "oval curtain cup" was once called one of the nine top porcelains in history. The weight is only half a baht (24 baht is one or two), which is really as light as a cloud. "Flowing Xia Zhan" is bright if it is a pearl, and the color is Danxia. Amin poet Li Rihua praised:
In order to find cinnabar to come to the city, Yun Qi pot is empty;
You light the glow lamp and go to Pan Lan Ting Jiuqu Spring.
Hao Shijiu is not only good at making thin-walled porcelain, but also good at making antique porcelain. The pot is light blue in color and elegant in style, which is very similar to the products of official kiln and Ge kiln in Song Dynasty.
Hao Shijiu is also good at poetry and calligraphy. His calligraphy is similar to that of Zhao Mengshun, a great calligrapher in Yuan Dynasty. He decorated poems, paintings and calligraphy on porcelain, which became more and more exquisite and was loved by people. His kiln was called "Gong Hu Kiln", and all the products of Gong Hu Kiln were sought after at high prices, which made them famous all over the world. What is commendable is that Hao Nineteen does not make a profit from this, but is still a "suitable jar". His family was depressed, and he lived in poverty and frugality, but he kept improving his skills.