Finings

Source: Wikipedia, the free encyclopedia.
Adding finings to a cask of beer

Finings are substances that are usually added at or near the completion of the processing of making

benzenoids, or copper ions. Unless they form a stable sediment
in the final container, the spent finings are usually discarded from the beverage along with the target compounds that they capture.

Substances used as finings include

albumen (egg whites), hydrated yeast, and activated carbon.[1]

Actions

Finings’ actions may be broadly categorized as either

enzymatic
.

The

complex
; their net charge becoming neutral. Thus the agglomeration of a semi-solid follows, which may be separated from the beverage either as a floating or settled mass.

The only

volatile sulfur compounds (VSCs).[2]

The ionic finings are copper sulfate and

tannins and leucanthocyanins that are removed by gelatin.[3]

The

fermented
.

Nutritional concerns

Unfortunately, beneficial antioxidant flavonoids are removed by some finings. Quercetin is removed from red wines via the finings gelatin, casein, and PVPP to reduce astringent flavors. If other fining methods are used, the quercetin remains in the wine.[5] Similarly the catechin flavonoids are removed by PVPP and other finings that target polyphenolic compounds.

Vegetarianism concerns

Main articles: Vegetarianism and wine and Vegetarianism and beer

Since some finings are animal products and others are not, it can be difficult for consumers to find out whether a particular wine or beer is

vegetarian, or neither, unless the producer or seller chooses to label it as such.[6] The website Barnivore maintains an international database of wines and beers, classifying each as "Vegan Friendly" or "Not Vegan Friendly"[7]

See also

References

  1. ISSN 1438-2385
    .
  2. ^ Wine/Enology Notes #85, by Bruce Zoecklein, 22 Jan 2004, Virginia Cooperative Extension Service "Enology Notes #85 - Wine Enology Grape Chemistry Lab at Virginia Tech". Archived from the original on 2006-09-01. Retrieved 2007-05-15.
  3. ^ Fining & Clarifying Agents, by Terry Rayner Archived 2006-06-16 at the Wayback Machine
  4. ^ "Using Pectic Enzymes". WineMakerMag.com. Retrieved 2024-04-20.
  5. ^ "Quercetin - Quercetin - Anti-tumor Activity Helps Fight Cancer - Diet and Health.net". diet-and-health.net. Archived from the original on 2007-09-28.
  6. ^ "About Vegan Wine | What is it and why isn't all wine vegan?". Vegan Wine Box. Archived from the original on 2020-08-12. Retrieved 2020-09-11.
  7. ^ Smith, Stacey (16 January 2018). "10 best vegan wines". The Independent. Retrieved 17 March 2021.

External links

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