What are the advantages of aging wine in a barrel?

When wine ages in a barrel, it is exposed to small quantities of oxygen which connects with the wine, softening the tannins and improving the flavor. The barrel also imparts other flavors to the red wine, such as toast, vanilla, or spice, depending upon the type of wood utilized.  check this site out In addition, barrel aging allows the white wine to develop a complex arrangement and a long finish.