"The family vineyards are in France. As are a number of the rest of Earth's vineyards - it can be hard to find other planets that are well-suited to the optimal growing conditions for Terran plants."

And in general, the Federation doesn't much go in for terraforming. It's not entirely unknown, perhaps. But it's still generally considered to be better to leave other planets as they are, especially when there's indigenous life present. But he figures that's a point that he can address later, if it should happen to come up.

"However, there are other cultures - other species - that make wine. It's just not necessarily made from grapes. Klingon bloodwine is likely the most well-known, although there are others as well."