Aging wine in oak tends to improve the flavor.
There is no oak in wine. Wine is aged in oak barrels to give it a certain flavor.
Online seems to be the best place to find a high quality oak rack. If a store had to be suggested it would have to be amazon or some local retail furniture stores.
Oak wood is used to build wine barrels. The type of oak affects the wine's colour, flavour, texture and tannin profile. In America, white oak is generally used for wine barrels.
Placing wine in oak barrels changes its taste (giving it an oaky or woody taste).
storage in an oak cask
in oak barrels or steel vats.
Many reasons - Availability - Relatively easy to bend and shape - Provides the best balance of being tight yet porous (good for aging) - The flavors added to wine from oak complement its flavor
Generally, white oak is used.
Silver Oak
Approximately 2 quarts of wine evaporates from an oak wine barrel in a month. This allows the wine to become more concentrated in flavor and aroma.
Store wine in a cool, dark place with moderate humidity and no vibrations.
Quite simply, unwooded Chard or "unoaked" is wine that has never seen the inside of an oak barrel. Typically it will be wine that is fermented in a stainless tank, as opposed to a wooden (oak) cask/barrel. The oak typically helps to balance the tannins, among other things, and gives wine that "full mouth" feel with lots of mid-palate tastes. Unoaked wines are great for people who claim to have an "allergy" to wine. It is the tannins that people typically react to, and those come from both the skins and stems of the grapes, but also from the oak barrels. If you don't "oak" a wine, the you have a lower tannin level which should make the wine bearable to drink for the aforementioned crowd.