It doesn't feel plasticine. Feels smooth, almost just like the metal itself. I'm concerned it's an enamel, which idk if a fire would remove.Is that a coating applied to the inside?
If so what is it made of?
I would be cautious of having a fire and cooking food in a container that had say plastic or teflon coating.
Paint as well although I supposed a large fire to "cure" it might burn off enough to prevent your food from tasting like paint.
Did this this morning after dropping my kid off. It's definitely got some sort of coating on it.Maybe you should scratch the inside surface and see what you get before the fire. Will certainly tell you if it is coated.