Wine Index

Cork, wine cork, bottle cork, Cork Products,  stopper, wine bottle cork, glass bottle cork Cork and Cork Products
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Cork material is a subset of generic cork tissue, harvested for commercial use primarily from the Cork Oak tree.

Cork's elasticity combined with its near-impermeability makes it suitable as a material for bottle stoppers, especially for wine bottles. Cork stoppers represent about 60% of all cork based production.

Cork demand has increased due to a larger proportion of wine being sealed with cork rather than being sold in bulk.

Some wines are fermented in the bottle, others are bottled only after fermentation. They come in a large variety of sizes, several named for Biblical kings and other figures. The standard bottle contains 750 mL, although this is a relatively recent development. Wine bottles are usually sealed with cork, but screw-top caps are becoming popular, and there are several other methods used to seal a bottle

Top quality corks are quite expensive, so many cheaper brands have switched to lower quality cork, synthetic plastic stoppers, screwcaps, or other closures.


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Alphabetical Listings

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Amorim Cork America
2557 Napa Valley Corporate Dr, Napa, CA 94558 707 224-6000
Juvenal Direct Inc
120 Dodd Ct, American Canyon, CA 94503  707 254-2000
Lafitte Cork & Capsule
45 Executive Ct, Napa, CA 94559  707 258-2675
Neocork Technologies
110-A Mezzetta Court, American Canyon, CA 94503
707 642-6800 email
Portocork America
560 Technology Way, Napa, CA 94558 707 258-3930
74 Corte Madera Ave, Corte  Madera, CA , Napa
707 258-0200
Stericork, Inc
173 Camino Dorado, Napa, CA 94558 707 254-2093
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Because synthetic stoppers do not dry out and shrink, wine bottles with synthetic corks do not have to be stored on their sides to prevent the wine from oxidizing. Cork contamination with harmless but foul-smelling trichloroanisole (TCA) is one of the primary causes of cork taint in wine. For these reasons, a few wineries are now switching away from cork.

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