Zisha steam pot Casserole Stew pot Household soup pot Yunnan steam chicken Steamer ceramics

Does the pot and lid need to be seasoned befor using? I've seen YouTubes where they soak the pot, put a light coating of cooking oil, then bake?

Can this make soup? How do you make soup?

Can you make this pot bigger than 2800ml?

Is this pot oven proof?