> Cork allows for an air exchange which no other artificial material does. Air exchange is the one thing you least want, it means oxidation. The entire point o

> Cork allows for an air exchange which no other artificial material does. Air exchange is the one thing you least want, it means oxidation. The entire point of the cork is to keep air out. Air is the enemy. > I don't know a single Spanish, French, Italian, Portuguese winemaker that even sells without cork. Again, because of the cachet of cork. Most buyers don’t even know what they’re drinking. Plastic and metal caps feel cheap, therefore buyers don’t want them.