Yes. If it is small enough to fit and heat resistant enough that you could put it in your regular oven.
Porcelain is actually used in too general a way to simply say yes. Actually, thinner, decorative porcelain can't go in the oven. Only stoneware or porcelain specifically made for the purpose can. The best advice is to look at the label or for a stamp on the underside.
Limoges
DO NOT ! - This is dangerous, as it may separate in the oven, or as you pull it out. - Get a new one.
No! Porcelain is a clay mixture fired in a kiln that is commonly called "china" because the mixture/process was first invented in that country. It is delicate and contains metallic elements that will heat up quickly and break the porcelain when in contact with heat. Also, porcelain china should not be used in a microwave because of the metal elements.
No nor decorated ones
China!
porcelain
How to bake your porcelain pieces in a domestic oven to make it more permanent. Adult supervision required. Once you have finish painting, leave the paint to dry completely for 24 hours before baking. Put all the pieces on a cookie sheet and place the cookie sheet in a cool oven, then turn the oven on to 300°F ( 150° C) and bake for 35-40 minutes. Turn the oven off, open the oven door and left the pieces cool down inside the oven. With the Plat art porcelain paint that comes with the kit, it does not need to dry for 24 hrs.
If the bottom of the dish says oven proof than yes, if it does not than I wouldn't risk it. The dish itself would be fine but the paint or sealant might not be if they are heated.
Fine china is made of porcelain
Yes its a good idea, Make sure their is no heating element under the base, in your oven, Otherwise should be fine, I put all my oven trays, upside down, in the dishwasher regularly, Saves a lot of scrubbing,