Your coffee encyclopedia. Explore growing regions, bean varieties, processing methods, roasting science, roast levels, and tasting — and discover your coffee type.
Follow the process flow to see how Java Geek turns you into a coffee expert, one topic at a time.
From the main menu, tap Java Geek. It's free, during your 30-day trial and after it, and it's your encyclopedia of coffee knowledge — from bean varieties and processing methods to roasting science and tasting.
Choose from 9 topics: Growing Regions, Bean Types & Varieties, Growing Seasons, Processing Methods, Coffee Grades, Roasting Science, Roast Levels, Tasting & Sensory, and Find Your Type. Each topic is a deep, interactive reference.
Learn the difference between Arabica and Robusta, then explore 30+ processing methods in detail — from traditional Washed and Natural to experimental techniques like Anaerobic Fermentation, Koji, and Carbonic Maceration. Each method includes its impact on flavor, aroma, and body.
Discover how 20+ countries grade their coffee. Ethiopia uses Grade 1–5 based on defect counts. Kenya uses screen sizes (AA, AB, PB). Colombia classifies as Supremo, Extra, or Europa. Each grade includes defect tolerances, tasting notes, and roasting recommendations.
Explore 250+ growing regions mapped by country with flavor profiles for each. Understand how altitude, climate, and soil create distinct regional characteristics. Plus, learn harvest seasons so you know when fresh-crop beans from each origin become available.
Dive into the science behind the roast: the Maillard reaction, caramelization, first and second crack, development time ratios, and weight loss calculations. Then open Roast Levels to explore every level from Light (Cinnamon, 385°F / 196°C, Agtron 95–80) through French (460°F+ / 238°C+, Agtron 30–25) with flavor descriptions, best origins, and brew method compatibility.
Tap Find Your Type and take the quiz to discover your coffee personality. Are you Bold, Bright, Balanced, Sweet, Classic, Exotic, or Adventurer? Based on your answers, Java Geek recommends origins, roast levels, and brew methods matched to your palate — a fun way to explore new coffees.
Java Geek is free — during the 30-day trial and after it. Open the app and start exploring coffee knowledge right away.