Racking, often referred to as Soutirage or Soutirage traditionnel (meaning racking in French), also filtering or fining, is the process of moving wine or beer from one container to another using gravity rather than a pump, which can be disruptive to the beverage. The process is also known as ''Abstich'' in German and ''travaso'' in Italian. ''Alexis Lichine's Encyclopedia of Wines and Spirits'' defines racking as "siphoning

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beer Beer is one of the oldest and the most widely consumed type of alcoholic drink in the world, and the third most popular drink overall after water and tea. It is produced by the brewing and fermentation of starches, mainly derived from cer ...

off the lees (in the case of wine) or trub (in the case of beer), into a new, clean barrel or other vessel". Racking allows clarification and aids in stabilization. Wine that is allowed to age on the lees often develops "off-tastes". A racking hose or tube is used and can be attached to a racking cane to make the task easier. The racking process is repeated several times during the aging of wine.

Process

Racking or soutirage is a traditional method in wine production of moving wine from one barrel to another using gravity rather than a pump. The process is repeated when the casks are moved to the second-year cellar. Soutirage was developed in the

Bordeaux Bordeaux ( , ; Gascon oc, Bordèu ; eu, Bordele; it, Bordò; es, Burdeos) is a port city on the river Garonne in the Gironde department, Southwestern France. It is the capital of the Nouvelle-Aquitaine region, as well as the prefecture ...

region of France in the 19th century at a time when there was no

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to power pumps. Many estates such in Bordeaux and some estates in Pomerol and

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still employ this labor-intensive method. During aging, the wine is decanted several times from barrel to barrel. This process softens

tannins Tannins (or tannoids) are a class of astringent, polyphenolic biomolecules that bind to and precipitate proteins and various other organic compounds including amino acids and alkaloids. The term ''tannin'' (from Anglo-Norman ''tanner' ...

, clarifies the wine and enhances aromatic qualities. According to

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, "traditionally the wine is 'racked' or drawn from barrel or tank to another empty one on a number of occasions (called soutirage). This helps clarify and freshen the wine by removing the fine lees or sediment which forms and provides a tiny amount of oxygen to help the aging process. The wine may also be 'fined' (''collage'') using

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or other materials to settle out particles in suspension which are then removed through further racking."

Egg white Egg white is the clear liquid (also called the albumen or the glair/glaire) contained within an egg. In chickens it is formed from the layers of secretions of the anterior section of the hen's oviduct during the passage of the egg. It forms arou ...

is often applied to each barrel during the process.

Equipment

A racking hose is a flexible, plastic hose, used to siphon wine or beer from one vessel to another. It is used in both racking and bottling operations. A racking cane is a rigid tube, often bent or "L"-shaped, that is attached to the racking hose to make racking easier. A protective cap is placed over the lower end of the cane that allows liquid to be drawn into the cane from above rather than below while keeping most large solids out. The cap allows the tip of the cane to be lowered close to the lees without unduly disturbing them. The lower tip of the racking cane should initially be held about midway between the surface and the lees and gradually lowered as the volume decreases due to the siphoning.

Process

Equipment

See also

References

Further reading