The Coravin System provides a whole new way of experiencing wine like you’ve never been able to before. It inserts a thin, hollow needle through the cork. The bottle is then pressurized with argon, an inert gas that’s in the air we breathe. Once the bottle has been pressurized, the wine flows through the needle and pours into your glass. After your wine is poured, the needle is removed, and the cork reseals itself.