I've never seen them used for wine, but they are great for beer. Just make sure to sanatize the cap and o-ring, and check the o-ring for cracks that would cause sealing problem.
Also, make sure you keep them in the dark, because the green bottle will not keep the light out and henceforth will skunk your beer.....NASTY!!!
Secondary #1: MT Secondary #2: MT
Conditioning: Nothing Drinking: Store bought
On Deck: Festa Brew Red Ale....As soon as I get my bucket back from storage.
All bottles are Guinness bottles, Plus Five Kegs!!!