There is a small amount of magic that seems to go along with the creation of a beautiful crown roast of pork and this usually means that the Caja China will be used alongside various herbs for the baste such as crushed red pepper, extra virgin olive oil, fresh sage and some rosemary. It's very often the case that recipes that include pork will use rosemary and it seems to be in just about every recipe out there.  One thing to note is to always remove the twine when the pork is going to be served.