Everything you need to know about cork stoppers.

FAQ’s

Cork is the outer bark of the cork oak, a tree typically found in the Mediterranean region, particularly in Portugal. It is a natural, lightweight, elastic and highly resistant material, ideal for sealing bottles of wine and spirits while preserving the quality and authenticity of the product.

Cork combines elasticity, impermeability and durability. These characteristics allow bottles to be sealed effectively, preventing liquid loss and ensuring suitable micro-oxygenation, which is essential for ageing wines and preserving the aromas of spirits.

Cork stoppers offer an authentic sensory experience, contribute to the natural ageing of wine, and are sustainable and biodegradable. They also add premium value to packaging, conveying tradition and quality to the consumer.

Yes. Cork is harvested from the cork oak without cutting down the tree, which continues to grow and regenerate. This sustainable process allows periodic harvests over several decades, helping to preserve biodiversity and mitigate climate change.

Cork is harvested manually by specialised professionals. Only the outer bark is removed, respecting the tree’s natural growth cycle. After around 9 to 12 years, the tree produces new cork ready for the next harvest.

  • Natural cork stoppers: stoppers produced from a single piece of cork, ideal for wines intended for ageing.

  • Microgranulated cork stoppers: made from high-density cork particles bonded together, ensuring consistent sealing and excellent stability in specific formats.

  • Colmated cork stoppers: natural cork stoppers with pores or fissures filled with cork granules, combining appearance and performance.

A high-quality cork stopper preserves aromas and prevents contamination, allowing the beverage to develop in a balanced way while maintaining the producer’s authentic expression.

Cork stoppers have an average lifespan of 10 to 20 years and may last even longer when stored in suitable conditions. In the case of spirits, longevity tends to be even greater, as bottles are generally stored upright, reducing direct contact with the liquid.

Micro-oxygenation is the controlled passage of oxygen through the stopper, which is essential for the balanced ageing of wine. Cork allows this natural process to take place, helping to develop complex aromas and preserve the quality of the beverage.

 Yes. Cork is 100% natural and biodegradable. It can also be recycled into other products, such as flooring, accessories or compost, promoting circular economy and sustainability.

 Yes, from still and sparkling wines to spirits. J.A.Beira offers solutions adapted to each application, ensuring sealing performance, preservation and authenticity.

TCA, or trichloroanisole, is a compound that may contaminate the stopper and cause unwanted aromas and flavours in alcoholic beverages, commonly known as “cork taint”. J.A.Beira minimises the risk of TCA through B-100® individual sensory analysis and advanced laboratory testing, ensuring that every stopper preserves the integrity of the beverage.

Cork is the outer bark of the cork oak, a tree typically found in the Mediterranean region, particularly in Portugal. It is a natural, lightweight, elastic and highly resistant material, ideal for sealing bottles of wine and spirits while preserving the quality and authenticity of the product.

Cork combines elasticity, impermeability and durability. These characteristics allow bottles to be sealed effectively, preventing liquid loss and ensuring suitable micro-oxygenation, which is essential for ageing wines and preserving the aromas of spirits.

Cork stoppers offer an authentic sensory experience, contribute to the natural ageing of wine, and are sustainable and biodegradable. They also add premium value to packaging, conveying tradition and quality to the consumer.

Yes. Cork is harvested from the cork oak without cutting down the tree, which continues to grow and regenerate. This sustainable process allows periodic harvests over several decades, helping to preserve biodiversity and mitigate climate change.

Cork is harvested manually by specialised professionals. Only the outer bark is removed, respecting the tree’s natural growth cycle. After around 9 to 12 years, the tree produces new cork ready for the next harvest.

  • Natural cork stoppers: stoppers produced from a single piece of cork, ideal for wines intended for ageing.

  • Microgranulated cork stoppers: made from high-density cork particles bonded together, ensuring consistent sealing and excellent stability in specific formats.

  • Colmated cork stoppers: natural cork stoppers with pores or fissures filled with cork granules, combining appearance and performance.

A high-quality cork stopper preserves aromas and prevents contamination, allowing the beverage to develop in a balanced way while maintaining the producer’s authentic expression.

Cork stoppers have an average lifespan of 10 to 20 years and may last even longer when stored in suitable conditions. In the case of spirits, longevity tends to be even greater, as bottles are generally stored upright, reducing direct contact with the liquid.

Micro-oxygenation is the controlled passage of oxygen through the stopper, which is essential for the balanced ageing of wine. Cork allows this natural process to take place, helping to develop complex aromas and preserve the quality of the beverage.

 Yes. Cork is 100% natural and biodegradable. It can also be recycled into other products, such as flooring, accessories or compost, promoting circular economy and sustainability.

 Yes, from still and sparkling wines to spirits. J.A.Beira offers solutions adapted to each application, ensuring sealing performance, preservation and authenticity.

TCA, or trichloroanisole, is a compound that may contaminate the stopper and cause unwanted aromas and flavours in alcoholic beverages, commonly known as “cork taint”. J.A.Beira minimises the risk of TCA through B-100® individual sensory analysis and advanced laboratory testing, ensuring that every stopper preserves the integrity of the beverage.