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Experts say there’s no strict rule for adding water to whisky, it’s all about preference. But science shows the right amount can unlock hidden flavours and enhance the experience

While some argue that whisky should never be diluted, research says otherwise.
Drinking whisky has become a staple at parties, social gatherings, and casual get-togethers, with many people choosing to mix it with water or ice. This raises one of the oldest questions among whisky lovers: how much water should you actually add?
While some prefer it neat, others enjoy a splash of water, and many like it over ice. Experts say there is no strict rule, as whisky should be enjoyed the way you like it. However, science suggests that the right amount of water can unlock hidden flavours and aromas, making the drink even more enjoyable.
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What Science Says
While some argue that whisky should never be diluted, research says otherwise. A study from Washington State University found that adding water helps release volatile compounds and flavour molecules, improving both taste and aroma.
According to experts, no more than 20 per cent water should be added to a standard 60 ml serving—around 12 ml. Any more than this and the flavours may blend too much, masking subtle notes that make each whisky unique.
Finding the Right Balance
If your first sip feels too sharp or alcoholic, add just 4-5 drops of water and try again. Keep adjusting until the taste feels balanced to you. It’s better to add slowly than over-dilute and lose flavour altogether. Remember, whisky is already diluted during bottling to make it smoother, so adding a little more water at home is perfectly fine.
Ice or No Ice?
The debate on ice is equally divided. In hot climates like India, ice is often added to keep the drink refreshing. In Japan, whisky is enjoyed in the ‘Mizuwari’ style, with both water and ice. For bourbon and American whiskies, ice enhances natural sweetness by softening sharper notes. One or two cubes are enough; larger cubes are ideal as they melt slowly, preventing the drink from becoming too watery.
Choosing the Right Water
When it comes to mixing water, use the one you normally drink—tap, filtered, or bottled—so the flavour feels familiar. For the best results, whisky connoisseurs recommend using water from the distillery region itself, as it contains the same minerals and complements the drink naturally.
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Author: News18