Chilling whiskey mutes the flavors

Whiskeys are crafted from a diverse range of grains, and the aging process in barrels contributes to their unique and intricate flavor profiles. When sampling a whiskey, you assess its body, aroma, and flavor characteristics, identifying subtle notes such as chocolate, tobacco, oak, orange, brine, stewed fruits, or green apple, depending on the production method.
However, chilling the whiskey can affect your ability to fully appreciate these flavors, as noted by Adam Edwards. He explains, "Cold whiskey often has subdued flavors." While storing spirits in the freezer doesn't cause any lasting harm (they won't freeze in a standard freezer), it does suppress certain molecules, making them harder to detect. Additionally, when served straight from the freezer, a spirit becomes more than twice as viscous compared to room temperature. This can enhance the richness of a martini but may alter your perception of a whiskey's lightness or fullness.
Edwards also advises against chilling the glassware, whether you're using a rocks glass, Glencairn, or a simple tumbler. "Chilled glasses work well for some cocktails," he notes, "but a freezing cold glass can be uncomfortable to hold and detracts from the overall whiskey experience." Ultimately, it's your whiskey to enjoy as you please—if you prefer it chilled, go ahead!
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