When it comes to preserving and enjoying a good wine, light plays a key role that is often underestimated. Whether natural or artificial, poorly managed light can alter the chemical composition and, consequently, the quality of a wine. Let's discover together why and how to protect your precious bottles from this discreet enemy.
The role of light: ally or enemy?
Light, particularly ultraviolet (UV) rays, can cause a phenomenon known as lightstruck . This defect manifests itself as unpleasant aromas, often compared to wet cabbage or wool, and results from chemical reactions affecting the aromatic compounds in the wine. These reactions are particularly critical for white and rosé wines, but reds are not completely immune.
What are the factors at play?
The type of glass in the bottle:- Clear or transparent bottles offer minimal UV protection, making them risky choices for light-sensitive wines.
- Green and amber bottles, on the other hand, block more UV rays, providing better protection.
Duration of exposure:
- Even brief exposure to intense light can be enough to alter the delicate aromas of wine.
- Prolonged exposure makes the problem worse, especially in bright or hot conditions.
The light source:
- Natural sunlight is the most harmful, due to its high UV content.
- Artificial lighting, such as fluorescent lamps, can also cause damage, although to a lesser degree.
How to protect your wines?
- Store away from light: The best way to prevent light taste is to store your bottles in a dark place, such as a cellar or cupboard.
- Using Protective Films: If you are displaying your bottles, consider using UV films to filter light.
- Adequate lighting: Choose low UV LED bulbs for your storage or display areas.
The importance of suitable packaging
Some producers take extra precautions by using tinted bottles or adding opaque sleeves. This choice may seem less aesthetic to some, but it guarantees better conservation of the aromas and organoleptic qualities of the wine.
A challenge for amateurs and producers
As a wine lover, it is essential to be aware of these impacts to protect your bottles, especially if you are investing in fine wines or rare vintages. On the producers' side, the choice of packaging and consumer awareness play a crucial role in preserving the quality of the wine.
Taking care of light means taking care of wine! So, the next time you admire a beautiful bottle, think about its exposure to light and preserve its flavors for optimal enjoyment.
