Friday, September 3, 2021

Why No Plastic Containers for Wine or Liquors?

Alcoholic drinks have a very long history in the world, and there are many types of them. But as you may have noticed that they are seldom contained in plastic bottles, especially liquors. Even the light alcoholic beers are mostly sold in metal cans or glass bottles. In the past when the packaging technology was underdeveloped, liquors are generally held in clay pots. Nowadays, most of the wine and liquor containers are made of porcelain and glass bottles, and very few are made of metal bottles, and seldom used "plastic" bottles. We may even hear that liquor should never be packed in "plastic" containers. Why? 

Glass Wine Bottle

The main reason that "plastic" containers are not recommended for liquor packaging is related to the material of the plastic itself. The composition of liquor is very complex, containing various organic substances, including alcohol, esters, aldehydes, etc.  And any type of plastic is composed of polymers. Many even have a similar molecular structure to liquors. Although  some plastics are non-toxic, it can be dissolved in alcohol, which would have an impact on the drinkers' health. Also, polymers dissolve in alcohol over time, and the longer the liquor is left in, the more it will dissolve. Not only the wine becomes impure, but also the taste will definitely be compromised.

However, glass and ceramics are mainly inorganic compounds such as silica, which will not react with liquors. So they will guarantee the original taste of the wine & liquors and does not produce substances that are harmful to the human body. Also, the main component of liquor is ethanol, which is easy to volatilize, but the stability plastics is not so good. As long as it is placed in a glass bottle or ceramic bottle and sealed, it can provide a better environment and can be stored for a long time.

No comments:

Post a Comment

Featured Post

Does Light Affect Wine Quality?

The short answer is that light can definitely affect wine, but we need to take a closer look at the physics and chemistry of it all to under...