The Ferrum Chardonnay is a single-vineyard wine produced by Crystallum from their estate at Shaw's Mountain, located just outside the Hemel-en-Aarde region near Hermanus. The grapes are whole-bunch pressed. Following an overnight rough-settling, the juice is transferred to barrels for fermentation. The fermentation process occurs spontaneously, and the wine is then aged over a period of 10 months in 300 and 500-litre barrels. To enhance its complexity and depth, 20% of these barrels are new oak. This process results in a Chardonnay that is expressive of its unique vineyard origins.