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bottling

bottling (GB)
mise en bouteille, enbouteillage (F)
imbottigliamento (I)
embotellamiento la botella (ES)

The last step of the winemaking, In due time before legal requirements must be met, that is the submission for the official test number (Germany) or state test number (Austria). From this point on, various changes may no longer be carried out. The wine must be chemically and physically stable, which is achieved by various measures (see also under beautiful ). This is done a long time before bottling sulphurize to one oxidation to prevent in the bottle. To check the protein stability, a sample is heated to over 70 ° C for two to three hours and then to a protein haze controlled. A Weinstein stability is by adding metatartaric reached.

Filling system GAI

The picture shows a compact filling system of the Italian bottling plant manufacturer GAI. It consists of the following components: bottle spout, venting station, dropping pressure filler, gas injector and sealing station (optional for cork or screw cap ) with a capacity of up to 2,400 bottles per hour (per bottle 1.5 seconds). In the video (click to view) becomes the filling line of the winery Scheiblhofer (Andau, winegrowing area Lake Neusiedl in the Burgenland ) from the bottling over labeling shown in cartons until packed. At the bottom is the filling line of the agricultural college Krems for viticulture and fruit growing in Lower Austria to see.

Filling system of the Italian company GAI

Choice of the lock system

For used bottles Thorough cleaning, disinfection and sterilization is essential against harmful microorganisms as Acetobacter (Acetic acid bacteria), yeasts or molds, For sterilization is ozone. peroxyacetic. sulfur dioxide or hydrogen peroxide used. The filling date must be chosen so that the wine in the bottle reaches its peak. For fruity white wines, this is already one to three months after fermentation. At in Barrique This can be many years to decades developed top reds. An important influence on the type of bottling has the shutter in terms of the diversity of Leeraumgröße in the bottleneck and the oxygen supply. There is no 100% tight closure. The ratio of permeability of screw cap and cork (Natural cork) is 1 to 3 or 4. There are already alternative closures with controlled oxygen supply such. B. Nomacorc and VinPerfect, This is called nanooxigenation (see below micro-oxygenation ).

The amount of oxygen uptake by the closure is related to the question of whether and how much oxygen for the bottle aging is required. Especially with red wines, a constant supply with regard flavorings and colour be positive. In addition, however, the possible amount of air in the bottleneck must be calculated, which is filled with inert gas or omitted during vacuumization. Will a wine with air in the bottleneck with 100 mg / l sulphurous acid this means 40 to 50 mg / l of free sulphurous acid. With 15 or 20 milliliters of air, the free sulphurous acid reduces to about 20 mg / l within the first three months after bottling, ie by about half. This means a faster maturation and thus shorter durability of the wine. Also by the filling process, the oxygen uptake can be influenced. In short tube filling machines, the wine drips down the inner wall and absorbs more oxygen. For a long pipe, however, the bottle is filled from bottom to top and absorbs less oxygen.

Filling

According to the filling technique, a distinction is made between level (high pressure), low pressure, normal pressure and, in the case of carbon dioxide-rich products, counterpressure fillers. Furthermore, a distinction is made in cold sterile and hot filling (hot filling). A cold sterile filling is usually used for white wines and storable red wines. All parts of the bottling plant must first be sterilized with hot water or steam. Bottling at wine temperatures around 15 ° Celsius keeps the carbon dioxide loss low. A hot filling takes place in simpler red wines. These are refreshed beforehand with carbon dioxide. Then the wine is heated to 60 to 65 ° C and then filled into the bottle; 13% vol alcohol content is sufficient 55 ° Celsius. All microorganisms are killed by the warm alcohol. It is important to cool down to below 40 ° Celsius in order to avoid the Kochton to prevent. The wines are ready to drink faster, aging but faster. An alternative is the pasteurization,

Depending on filling technique and Lock (Cork, screw cap, glass cork, etc.) results as already mentioned, the volume between the liquid and the closure, as well as whether or how much oxygen in this whitespace is included. For hot filling, depending on the alcohol content, the thermal expansion of 0.75 liters of wine is 10 to 13 milliliters; on cooling, there is a corresponding reduction in volume. Upon cooling, a vacuum forms, the void is filled with carbon dioxide from the wine. In a cold filling is an air displacement means inert gas advisable, since the approximately 15 milliliters of air still contain 4.2 milligrams of oxygen. Furthermore, the displacement of the air by dry ice or closing under vacuum is also used. Leaky closures lead to the enrichment of the void with oxygen and by evaporation of wine to less filling level, which is through oxidative Processes in any case adversely affects.

Regarding the decisions for the optimal closure and the treatment of the white space, the storability of the wines should be considered. Most wines today are drunk within the first one to two years - in Germany and Austria, these are well over 90%. It is therefore of much greater importance whether the void was rendered inert or vacuumized than controlling the influence of oxygen on the vial. Because the effect of the different oxygen passage of the different types of closure, would make itself felt only after a storage period, the majority of the wines did not reach.

labeling

Not infrequently occurs after filling the filling shock on. It is created during the filling process by mechanical stress of the wine and oxygen access. After closing (corking) begins the process of bottle aging that can take years to decades. The last step before the sale or the marketing is the adjustment, ie the attachment of label, Bottles capsule, any awards and statutory characteristics such as one banderole, According to EU Regulation when shipped to the EU market on the bottle (label, foil or bottle itself) a batch identification be included. The bottler must appear on the label; see also under Erzeugerabfüllung,

Filling line of the agricultural college Krems - wine and fruit school

Pictures and video: Kraft GmbH

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