Generally speaking, it is best to store alcohol bottles, especially liquor bottles, in an upright position. Storing bottles upright helps minimize the risk of leakage and evaporation, which can occur if the cork or cap is not sealed properly. Additionally, storing bottles upright can prevent the labels from getting damaged or detached over time.
When bottles are stored horizontally, the liquid inside can come into prolonged contact with the cork or cap, potentially leading to deterioration or contamination of the seal. This could result in a diminished taste and quality of the beverage. Moreover, if the bottle is not lying flat and is slightly tilted, the liquid may partially submerge the cork, causing it to dry out and shrink, which may further compromise the seal.
There are a few exceptions, such as certain wines with natural corks that can benefit from short-term horizontal storage to keep the cork moist and prevent it from drying out. However, for most liquor bottles sealed with corks or screw caps, upright storage is the recommended method to maintain the quality and prevent any potential issues with the seal.
In summary, if you want to store alcohol bottles, particularly liquor bottles, it's best to store them in an upright position to preserve the quality and prevent any potential leakage or damage to the cork or cap.