Here's one really big benefit to drinking boxed wine instead of bottled

Wine in a box may get a bad rap compared to its bottled brethren, but there is at least one distinct advantage to pushing that rubber spigot to fill your glass with red Franzia.

Boxed red or white wine can stay good for four to six weeks after opening, thanks to vacuum-sealed bags that prevent air from getting in and spoiling the wine through oxidation, according to the makers of Black Box Wine.
Conversely, uncorking a bottle of wine means you only have about a week until it expires. So if you're more of a sipper than a gulper, boxed wine is the way to go as far as ensuring it doesn't spoil quicker after opening.

"The enemy of wine is oxygen, and so what the bag and the box does is it keeps the oxygen away,'' wine expert and author Leslie Sbrocco told TODAY. "[Wine in a box] is really the ideal option if you just want to have a glass a night, and it can last for a month or more."

While sales of boxed wines only make up about 5 percent of total wine sales, they continue to grow, Sbrocco said.