You have to choose porcelain or glass passing in the oven at 160 ° C (which is not very hot, so many dishes concerned) and simply follow instructions, a breeze! Besides, it is within the reach of children (well protected, the ink is not washable on es tissue test done on the washed cotton at 60 ° C without first spotting attempt) under supervision adult, I plan to use it in class.
It is indicated that as the drawing is not passed in the oven, you can delete it, I have not yet tried it.
Once "cured", the object should not be washed more than 50 ° C, but is dishwasher safe (then selecting the right program).
Made in Germany