Several methods exist depending on the oven, and on the time
allowed to check the object.
If the object air dried a little, start cooking at 50°C. After
about 30 minutes, you can gently increase up to 100°C. Then you
have to estimate the cooking time, the thicker the object, the
longer it needs to dry!
For each centimeter, count roughly 2 hours at 100°C. It
obviously also depends on your oven. So check out from time to time
your object, it should sound hollow if it is well cooked!
For those who want to brown the objects, increase the temperature
at the end up to 170-200°C and check very often.
The best thing to do is to cook the object at once (thus at a
constant temperature) in order to prevent cracks due to the cold/hot
If you have prepared the object on aluminum, remove it at the
middle of the cooking so as to put the object directly on the grill.
This way both sides of the objects can dry.