Every wine region visited this year has asked something different of a single grape or a single blend. Jerez asks something stranger. It takes one base wine and, through technique alone, produces a family that ranges from the driest, most saline glass in this entire curriculum to one of its sweetest. Nothing else earns that kind of range from technique alone.

Two decisions make it possible, and both happen after fermentation, in the cellar rather than the vineyard.

Flor, or the Choice to Protect

Some barrels of young sherry are left to develop flor, a living veil of yeast that forms naturally across the wine’s surface. Flor protects the wine from oxygen. The result, Fino and its coastal cousin Manzanilla, stays pale, bone-dry, and saline, with a bready, almond-edged quality that comes from the yeast itself rather than from the grape.

Hold a glass of Fino to the light. It should look barely tinted, closer to water than to the golden whites earlier in this curriculum. That paleness is the flor talking.

Oxidation, or the Choice to Let Go

Other barrels are fortified to a strength flor cannot survive, or simply left without it. Air reaches the wine directly, over years, and the result deepens toward amber and mahogany: walnut, dried fig, leather, and a nutty, savoury weight that Fino never develops. This is Oloroso, and between the two lies Amontillado, a wine that begins its life under flor and finishes it without, carrying a little of both worlds.

The Solera, or the Choice to Blend Across Time

Almost no bottle of sherry is a single vintage. The solera system stacks barrels in tiers, oldest at the bottom, and each bottling draws a portion from the oldest tier, which is then topped up from the tier above, and so on up the stack. Young wine is folded into old, continuously, for decades. A house style survives one barrel, one vintage, one winemaker’s tenure. Nothing else in this curriculum has taught blending across time itself, rather than across grapes or barrels within a single year.

Where This Leaves Pedro Ximénez

At the sweet end sits Pedro Ximénez, made from grapes dried in the sun until they concentrate into something closer to syrup than wine. It is nearly black, thick in the glass, and tastes of raisin and molasses before a sip even reaches the tongue. This is the fourth route to sweetness this curriculum has now taught, after late harvest, freeze concentration, and appassimento drying: a different climate, a different technique, the same underlying question of how much sugar a winemaker chooses to leave behind.

Sherry rewards a taster who stops expecting one style from one region. Taste the full range side by side, and the region’s real subject reveals itself: not a grape, but time, air, and patience, handled three different ways.

Read Next

Tuesday: the full sherry range, style by style, and how to taste the difference between them in a single sitting.

Thursday: the tasting flight pairing post,