Always a good idea to boil wood and vines and then bake in the oven to dry on a low temp... like 125F. The boil and bake combo will kill any parasites or bugs on or in the vine.
I washed them thoroughly, then put them in the freezer for about 20 mins, and now I'm baking them at 200. Do you think this will be enough? Or should I boil as well?