The Bottles house a combination of first second and 3rd fill. Every year, a delicate process prevails to taste through all the barrels. The objective is to put a wine together with a balance of a wood and fruit combination. This however, every year, is not the same.
The wine is made to mature for 5 years. The tanning structure will soften and from there on, resulting in the wine not going off. There is no advantage to keeping the wine for longer.
We love older wine. But we also enjoy a wine with some tanning structure.