Why are beer bottles always brown or green?

we’ve seen mostly brown or green
This is because light speeds up the production of riboflavin in beer
And riboflavin is the main ingredient in skunk farts
So the more light seeps into the beer bottle
The beer will become bitter and smelly
That’s why beer should be stored in the dark
The reason why beer bottles are mostly dark
In order to avoid the influence of light as much as possible
Craft beer with higher storage quality requirements
Most of them choose to use brown wine bottle filter brown is darker than green

So why do green wine bottles still account for the majority?
Originally in the mid-19th century
Green glass is the cheapest and most common color
So people often put beer in green glass bottles
And this tradition has been preserved
It was later discovered that brown preserved better
Therefore, after World War II, brown bottles were in short supply.
As a result, people began to use green glass bottles to hold beer in large quantities.
until now People still use green as a symbol for beer bottles
Another interesting thing is
You can judge the thickness of the wine by the color of the glass of the wine bottle
thicker beer
The wine bottle glass used will be darker
Because this can enhance the refraction of light
Minimize variation in beer quality