How to Brew the Perfect South Indian Filter Coffee

The South Indian filter is a two-part steel vessel with a perforated bottom chamber, a pressing disc, and a lid. Generations of South Indian families have used it every morning — yet many households are not getting the best from it.

The first detail is the coffee-to-water ratio. We recommend 10–12 grams of ground coffee per serve (two heaped teaspoons). Too little and the decoction will be thin. Too much and water may not pass through in a reasonable time.

The second is the grind. South Indian filter coffee must be ground to a specific fineness — finer than pour-over but coarser than espresso. Mirras filter blends are pre-ground to the correct fineness. If you grind at home, use the filter setting on your grinder.

The third is water temperature and patience. Pour freshly boiled water (95–100°C) slowly over the pressed grounds. Then wait. A full decoction takes 12–15 minutes. Rushing with more water pressure gives a thin, under-extracted result.

For the milk coffee: mix one part decoction to three parts hot boiled whole milk. Sweeten with sugar or jaggery. Pour between two tall glasses or davara-tumblers to aerate — this creates the traditional froth.

At Mirras Coffee, our filter blends are developed specifically for this method — roasted to filter darkness, ground to the correct fineness, and dispatched within days. From our Coorg and Sakleshpur plantations to your morning cup, each bag carries 100+ years of filter coffee heritage.