Why are glass jars preferred over plastic containers for liqueur making?

Expanded Explanation

Glass jars are preferred for homemade liqueur making because glass is non-reactive and stable. High-proof alcohol can pull aromas, stains, or unwanted compounds from some plastics, especially during longer infusions with citrus peel, spices, or acidic fruit. Glass keeps the flavor cleaner and makes the final result more predictable.

Another major advantage is hygiene. Glass is easier to wash, sterilize, and inspect for residue, scratches, or cloudiness. Unlike plastic, it does not stay porous over time, so it is less likely to trap odors from previous batches or hold onto oils from strong botanicals such as cinnamon, clove, anise, or coffee.

Plastic containers may be fine for very short, low-risk tasks, but they are not the best choice for serious infusion work. For long macerations, flavor-sensitive recipes, and repeatable results, glass remains the safest and most reliable option. It also looks better when you want to monitor the infusion visually.