Why isn’t alcohol in plastic bottles?

Why isn't alcohol in plastic bottles?

As an expert sommelier and brewer, I can tell you that alcohol is rarely stored in plastic bottles, and there are several reasons for this. One of the main factors is the permeability of plastic compared to glass.

Plastic is not as impermeable as glass, meaning that it allows certain substances to pass through its walls. This can be a problem when it comes to storing alcohol, especially spirits, for a longer duration. The permeability of plastic can allow oxygen and carbon dioxide to enter the bottle, which can negatively affect the quality and taste of the alcohol.

Oxygen is a primary concern when it comes to storing alcohol. Exposure to oxygen can lead to oxidation, causing the alcohol to go off or spoil. This is particularly true for spirits, such as whiskey or rum, which often have delicate flavor profiles that can be easily altered by oxygen exposure. Glass, on the other hand, is impermeable to oxygen, providing a protective barrier for the alcohol inside.

In addition to oxygen, carbon dioxide can also be an issue when storing carbonated beverages, such as beer or champagne. The carbonation in these drinks can escape through the walls of a plastic bottle, leading to a loss of fizziness and potentially altering the taste. Glass bottles, with their impermeable nature, help to preserve the carbonation and keep the beverage fresh.

I have personally experienced the difference in storing alcohol in plastic versus glass. On one occasion, I accidentally left a bottle of whiskey in a plastic container for an extended period. When I finally opened it, I noticed a significant change in the flavor. The whiskey had become dull and lacked the complexity and depth it once had. This experience reinforced the importance of using glass bottles for storing alcohol.

Furthermore, plastic bottles can also be more susceptible to absorbing odors and flavors from their surroundings. This can be a problem when it comes to spirits that are meant to be enjoyed in their purest form. Glass bottles provide a neutral and non-reactive environment, ensuring that the alcohol retains its intended taste and aroma.

There are, of course, exceptions to this general rule. Certain types of alcohol, like wine or beer, can be stored in high-quality plastic containers for shorter periods without significant negative effects on taste. However, for long-term storage and preserving the integrity of the alcohol, glass bottles are the preferred choice.

The permeability factor is a significant reason why alcohol is not typically stored in plastic bottles. Plastic is more likely to allow oxygen and carbon dioxide to enter, which can spoil the alcohol and alter its taste. Glass, on the other hand, is impermeable to these gases, providing a protective barrier and ensuring the alcohol remains fresh and flavorful.