As an expert sommelier and brewer, I am familiar with the Glencairn whisky glass and its intended purpose. The capacity of a typical Glencairn glass is approximately 175 ml (6 US fl oz), but it is important to note that it is not meant to be filled to its maximum capacity. Instead, it is designed to hold approximately 50 ml (1.7 US fl oz) of liquid.
The reason for this smaller serving size is to allow for proper nosing and tasting of the whisky. Whisky is a complex and nuanced spirit, and by using a smaller amount in the glass, it allows for better concentration of aromas and flavors. The shape of the Glencairn glass, with its tapered opening and wide bowl, further enhances the nosing experience.
When pouring whisky into a Glencairn glass, it is recommended to fill it to about one-third or half of its capacity, which would be roughly 50 ml (1.7 US fl oz). This allows enough room for swirling the whisky and releasing its aromas without the risk of spilling or overfilling the glass. It also leaves space for adding a few drops of water, if desired, to unlock different flavor profiles.
It is worth mentioning that the amount of whisky poured into the glass can also depend on personal preference. Some individuals may prefer a larger pour, while others may prefer a smaller amount. Ultimately, it is about finding a balance that allows for a comfortable nosing and tasting experience.
In my experience, I have found that the recommended amount of 50 ml (1.7 US fl oz) in a Glencairn glass is sufficient to fully appreciate the whisky's characteristics. It allows for the whisky to breathe and develop in the glass, revealing its unique aromas and flavors. Additionally, it provides the opportunity to take smaller sips, allowing for a longer and more enjoyable tasting experience.
To summarize, the Glencairn whisky glass is designed to hold approximately 50 ml (1.7 US fl oz) of liquid. This serving size allows for proper nosing and tasting of the whisky, ensuring that its aromas and flavors are fully experienced. However, the amount poured into the glass can vary based on personal preference, as long as it does not exceed the glass's capacity.