{"id":3171,"date":"2022-06-28T15:04:40","date_gmt":"2022-06-28T15:04:40","guid":{"rendered":"https:\/\/tesa-cork.com\/blog\/tap-de-dos-discs-de-suro-natural-la-millor-eleccio-per-al-teu-vi-escumos\/"},"modified":"2023-10-20T18:06:14","modified_gmt":"2023-10-20T16:06:14","slug":"stopper-with-two-natural-cork-discs-the-best-choice-for-your-sparkling-wine","status":"publish","type":"post","link":"https:\/\/tesa-cork.com\/en\/blog\/stopper-with-two-natural-cork-discs-the-best-choice-for-your-sparkling-wine\/","title":{"rendered":"Stopper with two natural cork discs: the best choice for your sparkling wine"},"content":{"rendered":"\n

Most mid-high range sparkling wines are closed using a stopper with two natural cork discs<\/strong>. These types of stoppers belong to the technical stopper family, and they are composed of an agglomerate body and two discs of natural cork on the end that comes into contact with the wine to ensure absolute safety.<\/span><\/p>\n\n\n\n\n\n\n\n

This closure system is considered the best choice for sparkling wine thanks to its numerous properties, which provide optimal characteristics and aromatic notes in the aging of the wine, and ensure pressure is maintained<\/strong> from the time the wine is bottled until it is consumed. As a result, its quality, state of preservation and, of course, its magnificent flavor are guaranteed.<\/span><\/p>\n\n\n\n

What is the double-disc system in cork stoppers?<\/span><\/h2>\n\n\n\n

The simple design of double-disc stoppers is the result of years of perfecting a long tradition<\/strong> that has always sought to offer the best possible conditions for wine to age and develop its best characteristics<\/strong>.<\/span><\/p>\n\n\n\n

For this reason, this design combines 100% natural cork of the highest quality with an agglomerate body<\/strong> that guarantees an airtight seal.<\/span><\/p>\n\n\n\n

How it functions is simple: the agglomerate body acts as the main occlusive element, adapting to the walls of the bottle neck with the exact pressure needed to withstand the 6 bars of pressure exerted by the carbon dioxide gas of sparkling wines. At the same time, it ensures users enjoy a smooth uncorking, a ritual so synonymous with celebrations and also with a product increasingly highly regarded for its quality.<\/span><\/p>\n\n\n\n

The two cork discs are the heart and soul of this stopper, keeping the wine protected in an atmosphere of natural elements, providing aromatic notes and a smooth and regular oxygenation, while protecting it from coming into contact with the glue of the agglomerate body.<\/span><\/p>\n\n\n\n

The agglomerate body is usually around 36 mm, and each of the two natural cork discs are around 5 to 6 mm thick, i.e., around 10 to 12 mm in total, although sizes can differ. They also have a chamfer of around 4 mm to help orient the stopper correctly on the bottling line.<\/span><\/p>\n\n\n\n

There are different reasons why the double-disc system is used for cork stoppers<\/strong> for sparkling wines:<\/span><\/p>\n\n\n\n

Protecting the taste<\/span><\/h3>\n\n\n\n

The 100% natural cork discs are the only element in contact with the wine, performing two main functions: preventing the wine from coming into contact with the agglomerate body; and adding natural aromatic notes to the final taste.<\/span><\/p>\n\n\n\n

Leakage prevention<\/span><\/h3>\n\n\n\n

The discs used in this type of stopper are very resistant, so they can perfectly withstand the pressure exerted by sparkling wines, providing a very stable physical seal. <\/span><\/p>\n\n\n\n

Maintaining quality in sparkling wine aging<\/span><\/h3>\n\n\n\n

These types of stoppers are excellent at insulating the wine from the outside, maintaining the necessary concentration of CO2 inside the bottle, but regulating a gentle inflow of air from the natural cork cells, which prevent both the oxidation and asphyxiation of the sparkling wine.<\/span><\/p>\n\n\n\n

Agglomerate body<\/span><\/h2>\n\n\n\n

The agglomerate body<\/strong> is made up of cork granules. Each manufacturer selects their own cork granule size, the best being medium granules because they reduce the amount of glue used in each stopper and contain higher quantities of natural cork.<\/span><\/p>\n\n\n\n

The agglomerate body is the largest piece of the stopper, so the way it is manufactured and its composition greatly affect the environmental impact.<\/span><\/p>\n\n\n\n

Certified food-safe glues are used for its production, which bind the cork granules to form a homogeneous body.<\/span><\/p>\n\n\n\n

The uniformity of this part ensures a perfect seal and adaptability.<\/span><\/p>\n\n\n\n

Granule size<\/span><\/h3>\n\n\n\n

Cork granules are obtained from the crushing of natural cork<\/strong>, through a mechanical grinding process, followed by granulometric classification, washing off the dust and soil, and equalizing moisture.<\/p>\n\n\n\n

Granulated cork can be found in a variety of sizes and densities<\/strong>: from lower density cork dust (0.5\u20132 mm) to medium sized granules (3\u20137 mm), which provide higher quality for the sparkling wine<\/strong>. In general, the more balanced the density, the better the seal, and logically, the higher quality stoppers will be those using medium grain sizes.<\/span><\/p>\n\n\n\n

100% natural cork discs<\/span><\/h2>\n\n\n\n

The second element of this type of stopper is the discs made with 100% natural cork, following the same production process as natural cork stoppers<\/strong>. Each disc has a diameter of 34 mm and a thickness of 6 mm.<\/span><\/p>\n\n\n\n

They are glued to the agglomerate body on one of the ends using food-safe glue<\/strong>. By binding the disc to the body, it is possible to produce various types of stoppers. Mainly:<\/span><\/p>\n\n\n\n