Ask most coffee drinkers outside South India about chicory, and you'll get a blank stare. Ask anyone who grew up drinking filter coffee in Tamil Nadu, Karnataka, or Kerala, and they'll tell you it's an essential part of the experience. Chicory is the quiet ingredient that gives South Indian filter coffee much of its character — and it deserves a proper introduction.
What Is Chicory?
Chicory (Cichorium intybus) is a flowering plant in the dandelion family. Its roots, when roasted and ground, produce a dark, slightly bitter powder that has been used as a coffee additive and substitute for centuries. You'll find it in French café au lait traditions, in New Orleans-style coffee, and prominently in South Indian filter coffee.
The root is harvested, dried, roasted at high temperatures, and then ground to a consistency similar to filter coffee powder. The roasting process develops its characteristic flavour — earthy, slightly caramelised, and pleasantly bitter.
How Chicory Became Part of South Indian Coffee Culture
Chicory's entry into South Indian coffee has colonial roots. During periods of coffee scarcity and high prices in the 19th and early 20th centuries, chicory was introduced as an extender — a way to stretch expensive coffee further. But something unexpected happened: people liked what it did to the cup.
Rather than being phased out when coffee became more accessible, chicory became a lasting part of the tradition. Over time, it stopped being seen as a compromise and became a defining characteristic of the style. Today, many traditionalists consider a South Indian filter coffee without chicory to be missing something essential.
What Chicory Brings to the Cup
Chicory isn't just filler. It actively shapes the flavour, body, and finish of your coffee in three key ways:
1. Body
Chicory adds a thick, substantial quality to the decoction. This is what gives South Indian filter coffee its characteristic weight — the sense that you're drinking something full and satisfying, not just flavoured water. When combined with full-fat milk, this body creates a deeply comforting mouthfeel.
2. Bitterness
Chicory contributes a clean, rounded bitterness that differs from coffee's natural bitterness. It tends to be less sharp and more lingering — and it can balance well against the sweetness of milk and sugar in a traditional filter coffee preparation.
3. Earthy Depth
Roasted chicory root adds a woody, slightly caramel-like finish that extends the aftertaste of the coffee. This is the note that stays with you after the last sip — warm, grounding, and distinctly South Indian.
Chicory vs. No Chicory: A Taste Comparison
Curious what the difference actually tastes like? Here's a simple breakdown:
- Pure coffee (no chicory): Brighter, more acidic, lighter body. The coffee's natural fruit and floral notes tend to come through more clearly. Often a good fit for black coffee or pour-over styles.
- 80:20 blend (with chicory): Darker, fuller, more rounded. The bitterness is deeper and more layered. Holds up well with milk. This is the profile many South Indian filter coffee drinkers know and prefer. Read the full story behind the 80:20 blend →
Neither approach is objectively better — they offer different experiences. For traditional filter coffee, many coffee drinkers find the chicory blend more satisfying.
Why Around 20% Chicory Is a Common Sweet Spot
The ratio matters. Here's what tends to happen as you move away from 20%:
- Below 10% chicory: The body can thin out and the characteristic South Indian finish may fade, making it taste closer to a generic dark roast.
- Around 20% chicory: A commonly preferred balance — full body, rounded bitterness, and that signature woody finish, without chicory overpowering the coffee.
- Above 30% chicory: The bitterness can become sharp and astringent, and the coffee flavour may get buried. At higher levels, chicory can start to feel like it's competing with the coffee rather than complementing it.
Our 80:20 blend is crafted around this balance — enough chicory to shape the cup, not so much that it dominates.
A Note on Chicory and Digestion
Chicory root is a natural source of inulin, a prebiotic fibre. While we're not making health claims, it's worth noting that chicory has a long history of use in traditional wellness practices across cultures. Some filter coffee drinkers find that chicory-blended coffee feels gentler on the stomach than pure coffee — though individual experiences vary.
The Grandpa House Perspective
At Grandpa House Coffee, we use roasted chicory in our 80:20 blend because it genuinely shapes the cup in a way we believe in — drawing on our family's coffee heritage dating back to the 1930s. Our Coorg filter coffee powder is crafted to let the Robusta's bold, earthy character come through, with chicory adding depth rather than masking the coffee. Learn how our Coorg coffee goes from farm to cup →
Experience the difference chicory makes. Try our Grandpa House 80:20 Coorg Filter Coffee → and brew it perfectly at home with our step-by-step guide →