Aglica Winery Grade Corks were developed for the wine industry to address corkiness, inconsistency, random oxidation, and leakage problems. These corks are made from Suberin, the purest part of cork, that is blended with a proprietary polymer which enhances the natural elasticity and sealing properties of the cork. The corks are symmetrical and totally natural in appearance. Bottles can be put on their side immediately after corking. We at love2brew recommended these for wines that are intended to age for 12-18 months.