As an expert sommelier and brewer, I can confidently say that unopened mezcal and tequila bottles do not have an expiration date. This means that you can keep that beautiful bottle of tequila for as long as you want, whether it's months or even years. Unlike perishable food items, spirits like mezcal and tequila have a virtually indefinite shelf life when stored properly.
One of the key factors in preserving the quality of these spirits is to ensure that the bottle remains unopened. Once you crack open the seal, oxidation begins to occur, which can gradually affect the taste and aroma of the liquor. However, as long as the bottle remains sealed tightly, the mezcal or tequila inside will maintain its original characteristics.
It's important to note that while unopened mezcal and tequila do not expire, their flavors can evolve over time. Just like fine wines and whiskies, these spirits can develop more complex and nuanced flavors as they age. This is particularly true for aged tequilas, which are often aged in oak barrels for several years. The aging process allows the spirit to interact with the wood, imparting additional flavors and aromas.
Personal Experience: I once had the opportunity to taste a bottle of tequila that had been aged for over 10 years. The flavors were incredibly rich and smooth, with hints of vanilla, caramel, and oak. It was a truly remarkable experience, and it showcased how aging can enhance the complexity of tequila.
While the flavor profile of mezcal and tequila can improve with age, it's important to note that not all tequilas are meant to be aged. Blanco or silver tequilas, which are unaged and bottled shortly after distillation, are meant to be enjoyed for their fresh and vibrant flavors. Aging these tequilas for extended periods may not necessarily improve their taste, as they are already intended to be enjoyed in their youthful state.
In terms of storage, it's best to keep your unopened mezcal and tequila bottles in a cool and dark place, away from direct sunlight and extreme temperatures. This will help to maintain the integrity of the spirits and prevent any degradation in quality.
The good news is that you can indeed drink 10-year-old tequila, as long as it has been properly stored and remains unopened. The aging process can enhance the flavors and complexity of the spirit, making it a unique and enjoyable experience. So go ahead, admire that beautiful bottle, and savor the flavors of a well-aged tequila when the time is right.