How to Make South Indian Filter Coffee at Home
Great filter coffee comes from a strong decoction and the right milk ratio: about 1 part decoction to 2 or 3 parts hot milk. Use fresh, finely ground coffee, press it lightly, pour just-off-the-boil water, and give it 10 to 15 minutes. Here is the full method, with the small details that make the difference.
What you need
- A two-part steel South Indian coffee filter with its pressing disc (the "umbrella")
- Finely ground filter coffee
- Water, milk, and sugar if you like
- A tumbler and dabarah (the small bowl), or any two cups
How much coffee?
| Filter size | Coffee | Hot water | Makes |
|---|---|---|---|
| Small (2 cups) | 3 heaped tbsp (about 20 g) | About 120 ml | About 80 ml decoction |
| Medium (4 cups) | 5 to 6 heaped tbsp (about 35 to 40 g) | About 220 ml | About 150 ml decoction |
Adjust to your filter. The top chamber should be about one third full of coffee before you add water.
Making the decoction
- Add the coffee to the top chamber and tap it so it settles evenly.
- Place the pressing disc on top and press very lightly. Pressing hard makes the water drip painfully slowly.
- Pour just-off-the-boil water slowly over the disc, up to the brim.
- Cover and wait 10 to 15 minutes. Do not stir or shake it.
- Use the first decoction for the best taste. You can pour a second round of water through for a weaker second batch, but it will not be as good.
Tip: make the decoction the night before and warm it gently in the morning. Do not boil it, as boiling turns it bitter.
Making the coffee
- Boil the milk. Full cream milk gives the classic creamy kaapi.
- Add 2 to 3 tablespoons of decoction to the tumbler, then sugar to taste.
- Fill with about 100 to 120 ml hot milk.
- Pull it: pour between the tumbler and dabarah from a height a few times. This mixes, cools and froths it.
Chicory: do you need it?
Many traditional filter powders mix coffee with chicory, a roasted root. Chicory adds body, a darker colour and a slightly bitter, caramel taste, and stretches the coffee further. It is a matter of taste, not quality.
- With chicory: thicker, darker, more of a traditional "hotel coffee" taste.
- Pure coffee (no chicory): cleaner, more aroma, and you taste the coffee itself. Our blends are 100% coffee.
Switching from a chicory blend? Use slightly more coffee at first, since pure coffee decoction can taste lighter in body.
Fix your filter
| Problem | Likely cause | Fix |
|---|---|---|
| Drips very slowly or stops | Pressed too hard, or grind too fine | Press lightly; use a slightly coarser grind |
| Drips through too fast, weak decoction | Grind too coarse, or too little coffee | Use a finer filter grind or more coffee |
| Bitter | Old powder, boiled decoction, too much chicory | Fresher coffee; warm, don't boil |
| Flat, no aroma | Stale coffee or open pack | Store airtight; finish within 3 to 4 weeks of opening |
Best beans for filter coffee
All our blends come with a South Indian Coffee Filter grind option.
- Morning Boost: medium-dark, 80% Arabica and 20% Robusta. Strong, bold and made for milk. The closest to a classic kaapi.
- Nutty Comfort: toasted nut notes, smooth and comforting with milk.
- Choco Moments: chocolatey and sweet, for a softer, dessert-like cup.
Comparing methods? See instant vs filter vs French press.
FAQs
What is the ratio of decoction to milk?
About 1 part decoction to 2 or 3 parts milk. Use less milk for a stronger cup.
How long does decoction last?
It tastes best the same day. You can refrigerate it for a day or two, but the aroma fades.
Can I make filter coffee without a filter?
Yes. Steep finely ground coffee in hot water, then strain through a fine cloth. See our no-machine guide.
Why is my filter coffee not frothy?
Pull it between the tumbler and dabarah from a greater height, and use full cream milk.
Is filter coffee stronger than espresso?
The decoction is strong, but it is diluted with lots of milk, so a cup of kaapi is usually milder than a straight espresso.