A screw top wine is commonly known as a screw cap or Stelvin cap. This closure type has gained popularity in recent years and is used as an alternative to traditional cork closures. The screw cap consists of a metal cap with threads that twist onto the neck of the wine bottle, providing a secure seal.
The use of screw caps in the wine industry has been met with mixed opinions. Some wine enthusiasts argue that screw caps lack the elegance and tradition associated with cork closures. However, many winemakers and consumers appreciate the practicality and reliability of screw caps.
One of the major advantages of screw caps is their ability to provide a consistent and airtight seal. This helps to prevent oxygen from entering the bottle, which can lead to oxidation and spoilage of the wine. With a screw cap, there is less risk of a “corked” wine, which occurs when a natural cork is contaminated with a compound called trichloroanisole (TCA).
Personally, as a sommelier and brewer, I have encountered my fair share of corked wines. It can be disappointing to open a bottle and discover that the wine has been affected by TCA, resulting in off-putting aromas and flavors. Screw caps provide a reliable solution to this problem, ensuring that the wine remains fresh and unaffected.
Furthermore, screw caps are also convenient for everyday drinking wines. They are easy to open and reseal, allowing for the enjoyment of a glass or two without the need for a cork extractor. This is especially beneficial when you want to savor a glass of wine without committing to finishing the entire bottle.
Another advantage of screw caps is their ability to preserve the wine's freshness and vibrancy. The airtight seal helps to retain the wine's aromas and flavors, allowing it to age gracefully. Some winemakers argue that screw caps are even more effective in preserving the wine's characteristics compared to corks, as they eliminate the risk of cork taint and oxidation.
However, it is important to note that not all wines are suitable for screw cap closures. Wines that are intended for long-term aging and development, such as some high-end red wines, may still benefit from the oxygen exchange that occurs through a cork closure. Corks allow for a slow, gradual introduction of oxygen, which can contribute to the wine's maturation process.
Screw caps, or screw top wines, are a practical and reliable closure type for many wines. While they may lack the romanticism and ceremony associated with cork closures, they offer advantages in terms of consistency, convenience, and preservation of freshness. When choosing a closure type, it is important to consider the specific characteristics and aging potential of the wine in question.