Definition - What does Flor mean?

Flor is a special type of local yeast from the Andalusia region in Spain. It is useful for making Sherry (Jerez) as it forms a cap on top the wine in their barrels and protects the wine from oxidation. It also creates an environment for micro-oxidation that gives the styles of Jerez their unique character.

WineFrog explains Flor

The layer of flor which forms on the surface of Sherry wines is referred to as the "veil." It can grow as thick as 3/4 of an inch thick. This special yeast is only indigenous to the specific climate in Southern Spain. Immediately following the fermentation of the base wines for Jerez, flor will begin to form.

Flor is this yeast that divides all the wines made in the Jerez de la Frontera region into two separate categories:

  • Biologically-aged Sherry - including Manzanilla and Fino styles
  • Oxidative Sherry - including Amontillado, Oloroso or Pedro Ximénez
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