The organic San Giusto a Rentennano 2015 Vin San Giusto (in a 375-milliliter bottle) opens to a dark chestnut color with brownish and copper highlights. This wine is viscous and quite thick with a contained 9.5% alcohol content. That low alcohol is a hallmark of this special dessert wine, as is its super rich, almost syrupy consistency, which is achieved with careful aging in small oak barrels. It offers aromas of chestnut, brown sugar and maple syrup.

Packaged in a 375-milliliter bottle, the 2014 Vin San Giusto is a blend of 92% Malvasia and 8% Trebbiano submitted to a careful air-drying process and extremely long cellar aging. All this meticulous work translates into a wine that virtually transcends vintage and the human hand. Indeed, this is a wine that makes itself thanks to the extreme methods it is submitted to. A precious 1,098 bottles exist, and the hallmark of this wine—a low alcohol content—is measured here at 9.5%. To the palate, this sweet wine shows thick, syrupy density, and you get clove, spice, dried apricot, chestnut honey and maple syrup. There's even a fragrant hint of wild porcino mushroom.

An organic blend of 90% Malvasia and 10% Trebbiano, the San Giusto a Rentennano 2013 Vin San Giusto (packaged in a 375-milliliter bottle) pours slowly and evenly from the bottle. The wine's thickness and syrupy richness recalls brown sugar and molasses. Those sweet flavors are elegantly contrasted against toasted nut and roasted chestnut. The wine's alcohol content is a very approachable 9.5%. This is an almost indestructible sweet wine that will hold decades in your cellar. A precious few 2,270 bottles were released.

Wine is elevated to art when we consider the various Vin Santos made throughout Tuscany. This is most apparent in the stunning San Giusto a Rentennano 2012 Vin San Giusto, which opens to a dark amber color with polished copper highlights. The bouquet produces a never-ending stream of dried apricot, honey, prune, rum cake, button mushroom and brown sugar aromas. You also taste some of the cinnamon spice and vanilla essence that comes with prolonged aging in the tiny traditional oak casks used to make this precious wine. The wine is sweet, concentrated and syrupy on the finish. This is a true beauty.

This is an iconic wine with an iconic lineage. The 2011 Vin San Giusto (presented in a 375-milliliter bottle with a 9.5% alcohol content) pours forth with extra thick density and richness. You could almost stick a fork in there and expect it to stand straight. The bouquet is seemingly infinite, starting off with dried fruit and brown sugar and then moving toward earthy aromas with button mushroom. The wine's sweetness is so delicate but powerful at the same time. I suppose that is the magic of this 90-10 blend of Malvasia and Trebbiano: something so simple can in fact be so divine. This vintage shows a little less activity on the bouquet, but a wine this precious can perform differently bottle to bottle. Brown sugar and maple syrup linger on the long finish. The wine is aged in chestnut wood barrels force years. A precious few 2,024 bottles were made.