Why are German wine bottles blue?

German wine bottles are not typically blue. They come in a variety of colors, including:

* Green: This is the most common color for German wine bottles. It helps protect the wine from UV light, which can cause oxidation and spoilage.

* Brown: This color also protects against UV light and is often used for red wines.

* Clear: Some German wines, particularly Rieslings, are bottled in clear glass to allow the color and clarity of the wine to be seen.

* Other Colors: There are some specialty bottles with unique colors, but these are not common.

It's important to note that the color of a wine bottle doesn't necessarily indicate the quality of the wine. The color is primarily chosen for practical reasons, like protecting the wine from light, and aesthetic reasons.