Like any alcoholic beverage, it’s easy to forget about triple sec as it lies in your liquor cabinet.
If you’re in the mood for a drink and just remembered your triple sec, these questions may enter your mind: Does triple sec go bad? How long does it last?
Here’s what you need to know: an unopened bottle of triple sec can last at its finest quality for about ten years. As soon as you open the bottle, that time is shortened to about three years.
Signs Triple Sec Has Spoiled

Due to its high alcohol content, it doesn’t really go bad, so long as no contaminants enter the bottle. However, the quality of your triple sec will degrade over time.
Inspect the smell and flavor of your triple sec. If it smells off, get rid of it. If the taste is flat or lacks the orange flavor, you can decide whether to discard it if you’re unhappy with the quality.
If you notice any strange changes in the appearance, odor, or taste of your triple sec, make sure to get rid of it.
How To Store Triple Sec

Triple sec should be stored the same way you store hard liquors. Keep them in a cool and dry area, away from sunlight and heat sources. For example, the pantry is a great spot.
Once you open the bottle, the process of oxidation starts. Oxidation creates changes in the taste of the liqueur. To prevent this, ensure that you seal the bottle tightly when it isn’t being used.
Another tip is to pour your triple sec into a smaller bottle once the original bottle is less than half-full. This works best if you plan on storing it for longer than a few months.
There is no need to refrigerate your triple sec unless you’d prefer to drink it chilled.
The Shelf-Life Of Triple Sec

Triple sec is pretty much indefinite as its high alcohol content makes it easy to preserve. However, what you’ll want to look out for is a change in the flavor and quality over time.
Generally, unopened triple sec lasts about 10+ years in the pantry. An opened bottle of triple sec will last 3+ years in the pantry. These dates refer to the best quality of this drink and not when it will spoil, as triple sec has an indefinite shelf-life.
What Makes Triple Sec?

Triple sec is an orange-flavored liqueur made from the peel of oranges grown on the Caribbean island of Curacao. It is made up of Curacao orange peel, lemons, sugar, and other fruit. This gives it its semi-sweet orange flavor.
The Verdict On Triple Sec
Ever tried making your own homemade triple sec? Well, here’s a recipe that tells you all that you need to know.
Thanks to its high alcoholic content, triple sec is pretty much indefinite. Although, it will lose its flavor over time. It is important to check the taste of your triple sec to ensure that you’re still happy with the quality. If not, get rid of it.