a glass of a gin cocktail
Here's The Best Way To Store Gin For Long Lasting Flavor
Thanks to its high alcohol content and low sugar content, unopened bottles of gin can last indefinitely, and opened bottles can last for up to two years.
These estimates only apply, however, if the spirit is stored correctly. Store gin in a cool, dry, and dark space, away from heat, light, and air.
Due to its high alcohol content, gin is extremely unlikely to ever spoil. Rather, it will begin to lose its characteristic flavor and mouthfeel over time.