Wine decanter

November 2, 2021

Sommeliers, wine tasters, oenologists, assiduous people at tastings, it is common for individuals who own a wine decanter. The rest is more frequent in companies, some private laboratories that carry out studies for liquor firms, on farms and everything related to winemaking.

For this reason and knowing that oenology is something like poetic, since there are those who have quoted: “ My soul wine , taste of my best moments” , we dedicate a space of knowledge for this laboratory material.

What is a wine decanter?

Properly said, the term to look for is decanter , the wine is for its common use, almost exclusive but not limiting for it.

This is a bottle-shaped container with a wide body that has the dual purpose of separating two mixed substances or solid remains from the wine, by pouring the denser one, allowing liquids to “breathe” and thus better display its aromas.

A wine decanter is usually made of glass with some variations in its shape and design (specific to the company or individual that makes them), with different volumes appropriate to the quantities to be processed. To adapt it to the desired quantity to be decanted, the most common are those of 0.70 liters, which has a standard wine bottle.

How the wine is decanted

  • The wine is left to rest in the decanter for the solid to settle, descending by gravity. In chemistry it is called basic disintegration of compounds) .
  • Clarified water will remain on the surface of the wine decanter, which is redirected to a new filter or container.
  • To speed up and improve this settling, some coagulant-flocculating compounds are added, such as ferric chloride or aluminum polychlorides, which promote agglomeration and give greater weight to the suspended particles.
  • This mixture is introduced into the base of the decanter, in which there is a micro sand that adheres to the flocs and thus increases their weight and size, making the flocs go to the bottom.
  • The decanted water is evacuated through the upper part of the tank, passing through inclined laminar modules that force the settling of the lighter particles carried by the upward current of the water.
  • At the bottom of the wine decanter, the sludge is pumped without interruption and from there it is sent to a hydrocyclone that, by centrifugal force, separates the sludge and the micro sand.
  • This sand is reinjected into the decanter, while the sludge is redirected to the sludge treatment unit.

Types of decanters

Static decanters With these, the floc is collected by simple sedimentation. They are ideal for small laboratories and sporadic uses.

Continuous flow decanters In these, the water enters the wine decanter continuously, making it a more profitable procedure in a place where it is used permanently, on the condition that the flow rate is checked periodically because variations in it produce eddies. that promote the rise of the flocs that should be settled.

Vertical flow decanter The slope of its conical shape oscillates between 45 and 60º and its average ascent speed ranges between 0.5 and 1 m / h. This, in addition to being a wine decanter, is used in water industries for primary wastewater decantation.

Dr. Loony Davis5
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Born and raised in Brussels in an English family, I have always lived in a multicultural environment. After several work experiences in marketing and communication, I came to Smart Water Magazine, which I describe as the most exciting challenge of my career.
I am a person with great restlessness and curiosity to learn, discover what I do not know, as well as reinvent myself daily, someone who is curious about life and wants to know. I enjoy sharing knowledge.
This is my personal project but I also collaborate in other blogs, it is the case, the most important web on water currently exists in the US, if you are interested you can read my articles here.

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