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We purchase every product we review with our own funds — we never accept anything from product manufacturers.
A wine preserver is a pump that prevents oxygen from entering a wine bottle, which would make it bitter or sour. Wine preservers come with rubber stoppers that have small openings. A stopper replaces the cork or cap, and the wine pump fits over it. A handle at the top of the preserver is pumped several times to get rid of the air from the bottle. The stopper is left on until you wish to drink. Some wine preservers will give a clicking sound to indicate all of the air is out. They can maintain a wine’s aroma and flavor for about a week. The handle should be ergonomic because you may need to pump quite a bit to get rid of all the air.
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