An innovative, high-tech corkscrew called the Coravin Wine Access System went on sale Monday for $300 per unit and allows wine service from a bottle that is uncorked and sealed to maintain quality. The system uses a Teflon-coated needle to penetrate the cork and serve wine through an attached nozzle, but when the needle is removed, argon gas is pumped into the empty space to preserve the remaining wine.

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