Why are most beer bottles green or brown?

Better protection, brown beer bottles rise

In the 1930s, it was unexpectedly discovered that the beer in the brown beer bottle was stored for a long time without odor. It turns out that the iso-α-acid in beer reacts with riboflavin under light, forming a

into odorous compounds. And brown or dark glass bottles absorb most of the light, preventing this chemical reaction from happening. As a result, brown beer bottles became popular.

Insufficient production capacity, popular refrigerators, and the return of green beer bottles

Due to the shortage of brown beer bottles in Europe, some famous brands have reintroduced green beer bottles. Because of the good quality of beer, green bottled beer once became synonymous with high-quality beer.

With the popularization and application of refrigerators, green beer bottles will no longer deteriorate due to long-term storage. The brewery has kept this tradition alive.

Therefore, most of the beer bottles seen today are green and brown.