South Indian filter (decoction)

A two-chamber stainless steel filter that drips a thick decoction slowly over fine coffee and chicory, later cut with frothy boiled milk. The basis of South India's kaapi.

Percolation

Ratio
1:3.3to 1:6.7
Temperature
95–100°C
Time
10–20 min
Grind
Fine

How it works

Cut away, step by step
Decoction:slow and thick
9:08

The decoction drips slowly for 10-20 minutes

Parameters

Working ranges
Ratio, coffee to water
1:3.3 to 1:6.7150–300 g per litre
Dose
15–30 g
Water
80–150 ml
Water temperature
95–100 °C203–212 °F
Contact time
10–20 min
Grind
Fine
Pressure
Atmospheric
Filter
Perforated stainless steel upper chamber with a pressing disc

Ranges are this atlas's summary of common practice, not a standard. Published standards are listed separately below, with their sources.

Where it sits among 29 methods

Temperature 0°100°
Time 10 s25 h
Strength 0 g/L650 g/L

Pale bars are the other methods; strength is grams of coffee per litre of water.

Published standards

Numbers as facts, with their source

No competition or certification body publishes figures for this method.

Origins and brewers

Origins of the method

Year
not published
Where
Tamil Nadu and Karnataka, India

South Indian household tradition; not confirmed by a primary source

Brewers

Pour over manual