Why are Rieslings in blue bottles?

Answered by Arthur Reyes

The use of blue glass bottles for Riesling can be traced back to the late 19th century. During this time, winemakers discovered that exposure to ultraviolet (UV) light could have detrimental effects on the quality and longevity of wine. It was found that UV rays can cause wine to deteriorate, leading to a loss of flavor, color, and overall quality.

To combat this issue, winemakers began experimenting with different materials and colors for wine bottles. It was discovered that blue glass was particularly effective in blocking harmful UV rays from reaching the wine inside. The blue hue of the glass acted as a natural filter, shielding the wine from the damaging effects of sunlight.

The choice of blue glass for Riesling wine specifically may have been influenced by several factors. Firstly, Riesling is a grape variety that is particularly sensitive to light exposure. It is known for its delicate flavors, aromas, and high acidity, which can be easily affected by light. Therefore, using blue glass bottles for Riesling helps to preserve its freshness and characteristics.

Additionally, the cool appearance of blue glass adds to the overall appeal of Riesling wine. The visual aesthetics of a wine bottle can greatly influence a consumer's perception of the product. The use of blue glass for Riesling not only serves a functional purpose in protecting the wine but also creates an appealing and distinct visual identity for the wine.

In my personal experience as a sommelier and brewer, I have witnessed the importance of proper storage and packaging for wine. Exposure to light, particularly UV rays, can lead to the deterioration of wine quality over time. I have noticed that wines stored in blue glass bottles tend to maintain their freshness, color, and flavors for a longer period compared to wines stored in clear or green glass bottles.

To summarize, the practice of using blue glass bottles for Riesling wine dates back to the late 19th century when it was discovered that UV light could cause wine to deteriorate. Blue glass was found to be effective in blocking harmful rays and imparting a cool appearance. This choice of packaging helps to preserve the delicate characteristics of Riesling and adds to its visual appeal.