"I consider the rare white Castillo Ygay one of the greatest white wines ever produced in Spain... This 1986 had seen the light as a limited early release bottled in 1992... But most of it remained unbottled and was kept at the winery, where it stayed in oak for 21 years, followed by some six years in cement vats until it was bottled. It has 13.5% alcohol, an extremely low pH of 2.98 and 6.75 grams of acidity (tartaric). It has a very subtle nose and it's a bit shy, a little closed at first. It was only bottled one and a half years ago, and it's not crazy to say that the wine is showing extremely young. The wine shows more open the day after, when it has developed some nuances of mushrooms and verbena tea. This is mostly Viura with perhaps a pinch of Malvasía Riojana. The palate is both powerful and elegant, with superb acidity and great length, with volume and sharpness, with a mineral, umami-driven finish. It fills your mouth, tickles your taste buds and makes you salivate. There is nothing negative about the wine; there is no excess oak, nothing blurry, nothing to improve... perhaps the bottle used! I think this is a perfect wine. It seems to be getting younger and younger with time in the glass; it seems to be getting more focused and sharper, and I have no doubt the wine will evolve and last for a very, very, very long time in bottle. I kept the opened bottle for almost one week and the wine didn't move one inch--no oxidation or any signs of fatigue."
100 Pts Luis Gutierrez Wine Advocate