As an expert sommelier and brewer, I can provide you with some information about the shelf life of pumpkin spice liquor. It's important to note that the shelf life can vary depending on factors such as the quality of the ingredients used, the storage conditions, and whether it has been opened or not.
Typically, a commercially produced pumpkin spice liquor will have a longer shelf life compared to homemade versions. This is because commercial products undergo rigorous testing and are usually made with preservatives to extend their shelf life. However, even homemade pumpkin spice liquor can last quite a while if stored properly.
When it comes to storing pumpkin spice liquor, it is best to keep it in a cool, dark place such as a refrigerator. The lower temperature helps to slow down any potential spoilage processes. It's also important to keep the bottle tightly sealed to prevent any air from entering and potentially oxidizing the liquor.
In terms of the actual shelf life, properly stored pumpkin spice liquor can last at least a month, and possibly even longer. However, it's always a good idea to check for any signs of spoilage before consuming it. If the liquor smells off, is curdled, or has a spoiled flavor or appearance, it is best to discard it.
I remember a time when I had a bottle of homemade pumpkin spice liquor that I had forgotten about in the back of my refrigerator. I discovered it a few months later and decided to give it a try. To my surprise, it still tasted delicious and hadn't shown any signs of spoilage. However, I must mention that this was an exception, and it's generally not recommended to keep pumpkin spice liquor for such extended periods.
To summarize, properly stored pumpkin spice liquor can last for at least a month, and potentially longer. However, it's important to use your judgment and check for any signs of spoilage before consuming it. If in doubt, it's better to err on the side of caution and discard it. Enjoy your pumpkin spice liquor while it lasts!