Whisky and soda in India
Whisky and soda is the default serve in most Indian homes and bars. It is also a drink that is easy to get slightly wrong. Here is what soda does, what ratio works and how to make it properly.
The peg and the soda bottle
Indian bars speak in pegs: a small peg is 30 ml and a large peg is 60 ml. The waiter asks whether you want soda, water or ice. The mixer is poured at the table, to your call. Whisky and soda as a long drink was popular in Britain in the late nineteenth century and came to India in the colonial era. It never left.
Part of its appeal here is the climate. A long, cold, fizzy drink makes sense on a humid evening in a way that a neat whisky does not. It also fits the way many Indians drink: slowly, with food, over a long conversation. A diluted drink holds up to that pace far better than a neat one that warms in the glass.
What soda does to whisky
Soda water is water carbonated with carbon dioxide. It dilutes the whisky like plain water does, but the bubbles carry aroma up to the nose and the carbonic acid adds a light bite on the tongue. That lift makes a light whisky taste brighter.
Carbon dioxide stays dissolved better in cold liquid, so cold soda holds its fizz longer. Warm soda poured over a warm whisky goes flat almost at once.
The ratio decides the drink
A common range is one part whisky to three or four parts soda. Do the sum: 60 ml of whisky at 40% ABV with 180 ml of soda gives 240 ml at 10%, roughly the strength of a strong craft beer. With 240 ml of soda it falls to 8%.
Stronger whiskies can take more soda. Lighter, softer ones drown beyond about one to three. Use a 30/60 ml steel jigger. Free pouring at home tends to drift well above 60 ml without anyone noticing.
Most Indian whisky is built for mixing
Much of what is sold as whisky in India is a blend of neutral spirit, often made from molasses, with some malt spirit and flavouring. In Scotland or the EU it could not be labelled whisky. Its light, smooth, slightly sweet profile is designed to be drunk with soda, water or ice. It does that job well. Our guide to the Indian whisky market explains the categories.
Malt whiskies, Indian or imported, can also be served with soda. Lighter, fruity malts work well. Heavily sherried or cask strength whiskies usually show better with just a little water.
Water, soda or neither
Water is quieter. It opens the aroma without adding any texture. Soda is brighter and more refreshing but can strip out some of the subtler notes. Neither is wrong; they suit different whiskies and different moods.
Use packaged drinking water or filtered water for both drinks and ice. Borewell water often carries minerals you can taste once the whisky is diluted. Open a fresh small bottle of soda rather than topping up from yesterday's half-flat large one.
Glass, ice and garnish
A tall, narrow glass keeps the fizz longer than a wide tumbler because less surface is exposed. Fill it with ice to the top. More ice actually means less dilution, because a full glass stays colder and each cube melts more slowly.
A twist of lemon peel or a slice of lime adds a fresh note that lifts a light whisky. Some drinkers add a few drops of lemon juice. It is a matter of taste. What matters more is that the soda, the glass and the ice are all cold before you start.
Pace the evening
Long drinks go down fast, especially in heat. Have a glass of water between drinks, eat with them and keep count. Pegs add up in the same way however much soda they come with.
Plan transport before the evening starts. Never drink and drive. Make sure there are good non-alcoholic options for anyone who does not drink.
Make it properly once
Chill a tall glass. Fill it to the top with large ice cubes. Add 60 ml of whisky, then pour 180 ml of cold soda slowly down the side so it keeps its fizz. Lift once from the bottom with a spoon and stop. Stirring hard knocks the bubbles out.
That is the classic highball method. Make one tonight with care and compare it with your usual pour. Most people are surprised how much difference cold glass, big ice and fresh soda make.
Common questions
How much is a peg of whisky in India?
A small peg is 30 ml and a large peg is 60 ml. Pours at home often drift above that without a jigger.
What is a good whisky to soda ratio?
Start at one part whisky to three parts soda. Strong whiskies can take more; light ones drown beyond about one to three.
Should soda be cold for whisky?
Yes. Cold soda holds its carbonation much longer, so the drink stays lively.

