The wine comes from the well renowned and founded in 1924 the winery Peter Mertes, and I suspect that they do not grow the wine itself, but "only" packages and markets.
Again and again, Bag-In-Box is called wine casually as Tetra Pack Wine. Between the two types of packaging are, however, worlds:
The BIB System - simplifies wineskin - is a special film, the actual box is only relevant marketing "camouflage". The highlight: the pouring is no air to the wine, so it is even begun, as a rule up to 2 months. Bottles and tetra pack can not offer. The advantage over bottle is of course the weight saved, which can be really helpful, especially on vacation. At parties wine gives itself out of this package a quasi alone. Whether the wine from the bottle tastes better - a divorce because the spirits. The only certainty is that both variants are taste superior to the Tetra Pack.
I hope my review was helpful for your buying decision. I answer questions like on the comment function.