I have searched on the Internet but cannot find what they are made of. Has this happened to anyone else.
He had taken three big coals out of the (cold) fire and starting nibbing on the corners, so that now they are white at the corners instead of black. Help - what has he eaten.
To be honest, he seems just fine but I don't want to be up half the night checking he hasn't been poisoned.
Does anyone know what these coals are made out of?