Pouring myself a glass of sauvignon blanc from a container that was first opened 30 days ago is not among the more appealing wine images that come to mind. But that’s exactly what I did the other night when I realized that it had been almost a month since I first tasted and wrote about the 2009 North Coast Sauvignon Blanc from Indulge, which is offering a line of California wines in a lightweight bag called an Astrapouch, complete with a little plastic tap with which to pour yourself a glass. At the time, I found the wine attractive and a good value at $20 for a liter and a half, the equivalent of two conventional wine bottles. Marketing of the wine includes an emphasis on its environmentally friendly packaging and the claim that it will remain fresh for up to a month. In fact, the wine was just fine, perhaps not quite so fresh tasting as it was when first opened, but still showing its fruit without any off tastes that would emerge had a regular bottle been left in the fridge for a month. I doubt that many people will leave the wine that long, but it’s nice to know that the system works.