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Extraction Science

The Golden Ratios.

In specialty coffee, water is not just a medium—it is the solvent. The ratio between coffee and water dictates strength, extraction yield, and sensory balance.

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1. Solubles Yield

A roasted coffee bean contains roughly 30% water-soluble material. The SCA (Specialty Coffee Association) golden standard dictates extracting between **18% to 22%** of this weight. Under-extraction yields sourness; over-extraction brings dry bitterness.

2. TDS (Strength)

Total Dissolved Solids measures concentration. Filter coffee typically sits at **1.15% - 1.45%** TDS (meaning 98.5%+ is pure water). Espresso reaches **8% - 12%** TDS. The ratio determines where your cup falls on this spectrum.

3. Brew Geometry

Water will always seek the path of least resistance. Using correct ratios alongside calibrated grind sizes ensures uniform contact time, avoiding channeling and securing a sweet, clean extraction.

The Decimal Ratio Spectrum

Concentrate

1:4 to 1:8

South Indian Filter & Phin

Intense gravity decoction. Designed to extract heavy solubles (with chicory) that pair seamlessly with rich, frothy frothed milk.

Decoction Style
Syrupy

1:1.5 to 1:2.5

Espresso & Moka Pot

High pressure, short contact time. Yields a concentrated, viscous shot topped with crema. Highlighted by chocolatey and nutty profiles.

Pressure Brew
Clarity

1:15 to 1:17

Pour Over & Drip

Gravity-fed filter extraction. Provides high flavor clarity and highlights complex floral, fruity, and acidic notes in single origins.

Golden Cup
Immersion

1:10 to 1:12

French Press & AeroPress

Immersion brewing. Allows coffee grounds to brew fully submerged, generating a sweet, well-rounded body with lower relative acidity.

Full Immersion
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Guides & Apparatus

Brewing Methods

Explore step-by-step instructions for V60, Espresso, French Press, and our signature South Indian Filter method.

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Direct Trade Sourcing
100% Traceable Single Origin
Data-Driven Algorithm Roasting
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Precision Roasted (Chikmagalur, IN)
Direct Trade Sourcing
100% Traceable Single Origin
Data-Driven Algorithm Roasting
Small Batch Excellence
Global Standards, Indian Roots
Precision Roasted (Chikmagalur, IN)
Direct Trade Sourcing
100% Traceable Single Origin
Data-Driven Algorithm Roasting
Small Batch Excellence
Global Standards, Indian Roots

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