How to make South Indian filter coffee at home

What you need

The heart of it is the South Indian coffee filter: two cylindrical stainless steel cups that sit one on top of the other. The upper cup has a perforated base that holds the ground coffee. A small pressing disc with a stem rests on the powder, and a lid closes everything in. Hot water goes in at the top, and the brew drips slowly through into the lower cup.

Beyond the filter, you need a kettle, a pan for the milk and, if you have them, a steel tumbler and its wide companion, the davara (also spelt dabarah). The pair is how filter coffee is traditionally served, and as you will see, it is also where the froth comes from. Two ordinary mugs will do the same job.

Choosing the powder: coffee, with or without chicory

Filter coffee is usually made with dark-roasted coffee, traditionally from beans such as Plantation A washed arabica or peaberry, ground fine to medium-fine. Karnataka has its own story about where it all began: the legend goes that a Sufi named Baba Budan carried seven coffee beans home from a pilgrimage to Mecca and planted them in the hills near Chikkamagaluru. You can read more about that history in filter coffee, the South Indian way.

Many blends include chicory, a root that is roasted and ground and mixed with the coffee. It adds a slight bitterness that plenty of people expect in their tumbler. A common blend is roughly 80 to 90 per cent coffee with 10 to 20 per cent chicory. Whether to use it at all is a matter of taste rather than rule: some prefer coffee alone, while others would not recognise their morning cup without a little chicory in it.

If you buy ready-ground powder, read the label. In India, every package containing a mixture of coffee and chicory must declare the percentage of each, a requirement the Food Safety and Standards Authority of India pressed manufacturers on in 2022. Buy in small quantities and keep the powder sealed, because freshly roasted, freshly ground coffee makes the better decoction.

Making the decoction

The decoction is the concentrated brew that collects in the lower cup. Well made, it is dark and strong, and only a spoonful or two goes into each cup. Quantities vary from home to home, so treat these as a starting point and adjust over a week of mornings.

1. Rinse the filter and set the upper cup firmly on the lower one.
2. Add about 2 to 3 tablespoons of coffee powder to the upper cup and level it with a gentle shake.
3. Set the pressing disc on top and press lightly. It should sit evenly on the powder, not be forced down.
4. Bring water to the boil and let it rest for a moment, so it settles to around 90 to 95°C.
5. Pour the water slowly over the disc until the upper cup is about three-quarters full.
6. Put the lid on and leave the filter alone. Most of the decoction drips through in 10 to 15 minutes.
7. Once the dripping stops, lift off the upper cup. Your decoction is ready.

Milk, sugar and the ratio

Filter coffee is a milky coffee. While the decoction drips, bring full-fat milk to the boil in a separate pan. Then take the milk off the flame before you add any decoction, so the coffee is warmed by the milk rather than cooked with it.

For the ratio, start with 1 to 2 tablespoons of decoction to about three-quarters of a cup of hot milk, then taste. More decoction gives a stronger, darker cup; more milk gives a softer one. There is no single correct answer here, only the cup you like best, and it is worth adjusting a spoonful at a time.

Traditional filter coffee is usually sweetened. Jaggery and honey were once the common sweeteners, and white sugar took over from around the middle of the twentieth century. Some cooks stir the sugar into the milk as it heats, others add it to the tumbler. Either way, add it to taste, and feel free to leave it out.

Good filter coffee is measured less in spoons than in patience: a slow drip, hot milk and a minute to pour.

Frothing by pouring

The froth on a tumbler of filter coffee comes from the pour, not a machine. Pour the coffee from the tumbler into the davara and back again a few times, lifting higher as your confidence grows. Each pour draws air into the coffee and builds a soft layer of foam on top. It also cools the coffee to a drinkable temperature, which is part of what the wide davara is for.

Two or three pours is usually enough; keep going much longer and you will have cooled it more than you meant to. Serve the tumbler sitting in its davara and drink it while it is hot and fresh. If you are wondering what to eat alongside, our guide to Karnataka breakfasts has a few ideas.

Common mistakes, and how to fix them

• Pressing the powder too hard. Light pressure is enough; heavy tamping holds the water back.
• Using old powder. Fresh coffee makes a fuller decoction, so buy small packs or grind as you need.
• Overfilling the filter. Keep the water to about three-quarters of the upper cup.
• Adding decoction to milk that is still on the flame. Heat the milk, take it off the heat, then add the decoction.
• Pouring in all the milk at once. Add it gradually and taste; you can always add more.
• Letting it go cold. Make the cup when you are ready to sit down with it.

None of this needs to be perfect on the first morning. Filter coffee rewards repetition, and within a few days your hands will know how much powder fills the cup and how high to pour. It is exactly the kind of small, daily pause we hope Annara will make room for, and you can read how we think about it on our coffee page.