Preservino Wine Preservation Bottle Stoppers (Professional Edition)

I purchased the Preservino in the silver box and found that it worked incredibly well. I live alone so a bottle of wine lasts a long time at my house. After rough days at work all I want is a glass of wine. I never satisfied my post-work craving because I knew I couldn't finish the bottle and didn't want to waste- I kept saving them for special occasions. With this system, I can have my post-work glass of wine. One bottle lasted me 9 days, on day 9 it tasted EXACTLY the same as day 1. I was shocked. When I learned about the upgraded Pro stoppers I bought a set. These are amazing because I only have to add the argon once, and have a glass at a time from then on. This is the best wine accessory I own!

Easy to use, dependable, never been disapointed. First it covers your wine in a blanket of Argon, then when you want a glass, twist open the top, as you pour you can hear the stopper working. Keep your wine safe for two or three weeks.

Works just fair. The stoppers do not seem to fit tightly in about 50% of normal 750 ml bottles. No way to tell if gas is released when opening to pour, do hear a rush so presume you lose gas. Gas cartridges only last for about 3 bottles of wine.