To Fine or Not to Fine That is the Question
Posted in Winemaking on January 22nd, 2007 by annetteFining is a process in winemaking often used to clarify wines or take unwanted materials in wine or juice out to alter the aroma, flavor, fermentability, bottle aging, color, biological or chemical stability. The use of fining as a winemaking tool depends upon the wine, vintage, grape condition, the winery’s winemaking goals, and, of course, on the winemaker. Various fining agents are used depending upon the type of wine and what the winemaker wants to achieve with it: bentonite (a grey clay) is used for a variety of things from clarity in juice or wine to treating a heavily botritysed juice. Most fining agents, though, are proteins of various molecular sizes and charges that are used to “pull out” a variety of solids or flavors. These include: gelatin, milk, PVPP, egg whites, or isinglass (a collagen derived from the swimbladders of sturgeon, which, as one might expect, smells quite pleasant), to name most of them.
Much Ado About Nothing?
In the wine drinking world, there does seem to be some confusion over fining as one will often see the phrase “unfined” or “unfined, unfiltered” on the back label, unintentionally implying that fining is somehow undesirable. At one time in recent history in the industry, it was a la mode to specify that a wine was not filtered or fined because these methods were said to be interventions that truly great wine did not require. I think this attitude was mainly an overreaction to the overuse of fining in the industry’s infancy here in North America. Nowadays, though, fining is looked upon as a sometimes necessary tool and one to be used with the lightest touch possible.Â
To illustrate what fining can do to or for a wine, let me use this example:

In Shakespeare’s time — the Elizabethan era — actors in plays were male regardless of the characters they portrayed. This meant that underneath the costume of the most mesmerizing and tragic Desdemona could be an uninteresting altogether forgettable lout of an actor, while the Fool in Lear, once stripped of his fool’s costume might altogether be sexy, leading man material (oh my).
Much the same it is with wine. Fining, when it might be unnessary to begin with and is then performed carelessly, can strip a potentially beautiful wine into lackluster dumbness. On the other hand, if a wine is cloudy, a little bitter or not as “focused” as one would like it to be, careful fining with the correct fining agent can remove these distracting “outer layers” from the character of the wine to expose brilliance and sophistication.Â