Indian Filter Coffee (Filter Kaapi): The Decoction, the Chicory and the Pour

Indian filter coffee — filter kaapi — is a strong decoction of dark-roasted coffee and chicory, dripped slowly through a steel filter, then mixed with hot milk and sugar and poured back and forth until frothy. To make it, put about 20 g of coffee-chicory powder in the top of the filter, pour 100 ml of boiling water over it, let the decoction drip for 10–15 minutes, then mix one part of it with two parts of boiling milk and sugar.

It has been described as "hot, strong, sweet and topped with bubbly froth", and it is the everyday coffee of much of South India.

The recipe

1. Load the filter. Put the powder in the upper, perforated chamber, level it, and set the plunger disc lightly on top.
2. Pour and wait. Pour the boiling water over the disc, put the lid on, and let the decoction drip into the lower chamber — usually 10–15 minutes.
3. Heat the milk to the boil.
4. Mix roughly one part decoction to two parts milk in each tumbler, and add sugar.
5. Pour back and forth between the tumbler and the dabarah, the wide bowl it sits in, from a height, until the coffee is frothy and cool enough to drink.

The filter and the decoction

The South Indian filter is two stacked stainless steel cylinders. The upper one has a perforated base and holds the coffee, pressed under a loose disc; the lower one collects the decoction. Boiling water poured on top seeps through the fine powder by gravity alone, slowly, which gives a more concentrated, robust brew than Western drip coffee.

The result is less a cup of coffee than a coffee concentrate. With 20 g of powder and 100 ml of water, the coffee-to-water ratio is about 1:5 — close to a moka pot and several times stronger than a filter brew at around 1:16 — and the powder holds back a good share of the water, so the decoction that drips through is small and dense. That is why it is diluted with two or three times its volume of milk.

The blend: coffee and chicory

Traditionally the coffee is washed arabica — Plantation A grade — or peaberry, roasted dark, ground fine and blended with chicory, with coffee making up 80–90% and chicory 10–20%. The chicory's slight bitterness is part of the classic flavour, and it adds body.

Chicory is the roasted root of a blue-flowered plant of the daisy family, rich in a fibre-like carbohydrate called inulin. As a coffee substitute it brings no caffeine of its own, so a blend has a little less caffeine than the same weight of pure coffee. Chicory is mixed into coffee in several places — France, New Orleans, parts of South-East Asia — and the café au lait guide tells the New Orleans story.

Sugar was not always white. Jaggery or honey were the traditional sweeteners; refined sugar took over from the mid-20th century.

The tumbler and dabarah

Filter kaapi is served in a small steel tumbler standing in a dabarah. The pour from one to the other does three jobs: it cools the drink, which is made with boiling milk; it dissolves the sugar; and it whips up the froth on top.

Coffee in India

India has drunk coffee for four centuries. Accounts of the Mughal court record coffee drinking from the early 1600s, with travellers describing the coffeehouses of Old Delhi. Legend says that the Sufi Baba Budan, returning from pilgrimage around 1650, smuggled seven coffee seeds out of Arabia — which then guarded its monopoly by exporting only roasted beans — and planted them in the hills of Chikmagalur, in what is now Karnataka. The hills are still called Baba Budangiri. The Dutch East India Company later noted the plants, and in the late 1700s the British East India Company set up plantations in Coorg, now Kodagu.

Today India is a substantial producer. The US Department of Agriculture forecasts Indian production for 2026/27 at about 6.1 million 60-kg bags, roughly three-quarters of it robusta, and domestic consumption at about 1.6 million bags; the rest is exported, a large share of it as instant coffee. The where does coffee grow guide puts India alongside the other producers.

Caffeine and calories

Caffeine depends on the blend and on how much decoction goes into each tumbler. Arabica contains about 12 mg of caffeine per gram, so 20 g of an 80:20 blend — 16 g of coffee — starts with roughly 190 mg. Shared between two tumblers, that is at most about 95 mg each, and somewhat less in practice; robusta-heavy blends, with roughly twice the caffeine of arabica, carry more. The caffeine guide compares other drinks.

With about 100 ml of whole milk per tumbler (about 61 kcal) and two teaspoons of sugar (about 32 kcal), a filter kaapi comes to roughly 95 kcal.