Why are beer bottles often green or brown?

The color of glass beer bottles is typically green or brown regardless of the brand, and many researchers have found the answer to this.

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Beer is now one of the most consumed beverages in the world. However, behind it are many historical stories that many people do not know, even the beer bottle caps are only brown or green.

So why does this kind of beverage only have green or brown bottle caps? Let’s go back in time and learn about this type of beverage.

The origins of beer can be traced back to ancient Egypt and a region located in the Tigris-Euphrates river system in Western Asia.

Why do beer bottles often have green or brown color?-1
Illustration.

However, it wasn’t until the 19th century that glass beer bottle manufacturing technology began to flourish in England and gradually spread to the world. It was also during this time that many manufacturers began to pay attention to the color of the beer bottle because they hid a business secret that not everyone knew about.

Initially, glass bottle manufacturing technology was still backward and rudimentary, so people did not pay much attention to the color of beer bottles. It wasn’t until manufacturers realized that beer would degrade under sunlight.

Therefore, manufacturers began to pay more attention to the material and color of the bottle caps. Dark green bottle caps were used a lot during this period and had the lowest production cost. Therefore, manufacturers chose this color and gradually became popular.

Subsequent beer bottle caps were made from transparent glass with a dark green color. This was a measure to prolong the shelf life of beer, especially during winter. However, they soon realized that if the beer was stored for too long, it would still develop a smell similar to skunks.

In 1930, it was discovered that using even darker bottle caps such as brown would help better limit the absorption of light, thereby preventing beer from deteriorating and losing its taste.

According to VTC.vn

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