shallow focus photography of coffee beans in sack

Coffee Beans & Origins

  • Arabica: High-quality coffee species grown at high altitudes, known for complex flavors and less caffeine than Robusta

  • Robusta: Coffee species with higher caffeine content, more disease resistance, and stronger, often more bitter flavor

  • Single Origin: Coffee sourced from one specific geographic region, farm, or producer

  • Blend: Combination of beans from different origins to create a specific flavor profile

  • Peaberry: Natural mutation where the coffee cherry produces a single, more rounded bean instead of two flat-sided beans

  • Estate Coffee: Coffee grown on a single farm or plantation

  • Micro-lot: Small, specially separated portion of a farm with unique characteristics

  • Green Coffee: Unroasted coffee beans that have been processed and dried but not yet roasted

  • Specialty Coffee: High-quality coffee scoring 80+ points on a 100-point scale by certified coffee tasters

  • Varietal: Specific genetic subtype of coffee plant (e.g., Bourbon, Typica, Gesha/Geisha, Caturra)

  • Terroir: Environmental factors affecting crop's qualities, including soil, climate, and altitude

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Coffee Processing Methods

  • Washed/Wet Process: Method where fruit is removed before beans are dried, resulting in cleaner, brighter flavors

  • Natural/Dry Process: Beans dried inside the coffee cherry, producing fruitier, sweeter flavor profiles

  • Honey/Pulped Natural Process: Partial removal of fruit before drying, resulting in characteristics between washed and natural

  • Semi-washed: Process where some mucilage remains on the bean during drying

  • Anaerobic Fermentation: Fermentation in oxygen-free environment to develop unique flavor characteristics

  • Monsooned: Beans exposed to monsoon winds to reduce acidity and create a distinctive flavor

  • Aged Coffee: Deliberately aged green coffee beans to develop unique flavors

  • Carbonic Maceration: Wine-inspired processing method using carbon dioxide to create fruit-forward profilesWrite your text here...

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Roasting Terms

  • Roast Profile: Time and temperature pattern used to roast coffee

  • First Crack: Audible popping sound during roasting when beans expand and moisture escapes

  • Second Crack: Later cracking sound indicating more developed roast with oils surfacing

  • Light Roast: Roasted to just before or at first crack, preserving origin characteristics

  • Medium Roast: Roasted to between first and second crack, balancing origin and roast flavors

  • Dark Roast: Roasted to or beyond second crack, emphasizing roast character over origin

  • City Roast: Medium roast completed shortly after first crack

  • Full City Roast: Medium-dark roast approaching second crack

  • French Roast: Very dark roast with oils on surface and strong roast flavor

  • Italian Roast: Extremely dark roast with pronounced bitterness

  • Development Time: Period from first crack to end of roast

  • Roast Date: When beans were roasted, important for freshness

  • Degassing: Release of carbon dioxide from freshly roasted beans

  • Quenching: Rapidly cooling beans to stop the roasting process

  • Baked: Undesirable flat flavor from too low and slow roasting

  • Scorched: Uneven, too-rapid application of heat resulting in burnt spots

person pouring coffee on coffee cup

Brewing Methods & Equipment

  • Espresso: Brewing method forcing pressurized hot water through finely-ground coffee

  • Pour Over: Manual brewing method where hot water is poured over grounds in a filter

  • French Press: Immersion brewing method using a plunger with metal mesh filter

  • AeroPress: Versatile brewing device using pressure to extract coffee through a filter

  • Chemex: Pour-over brewer with thick filter producing clean, bright coffee

  • Moka Pot: Stovetop brewer that uses pressure to push water through grounds

  • Siphon/Vacuum Pot: Brewing using vapor pressure and vacuum to extract coffee

  • Cold Brew: Coffee steeped in cold water for 12-24 hours

  • Drip Coffee: Automatic brewing where water drips through grounds in a filter

  • Turkish Coffee: Very finely ground coffee boiled in a cezve/ibrik

  • Percolator: Brewing device cycling boiling water through grounds repeatedly

  • Cupping: Professional tasting method to evaluate coffee quality

  • Bloom: Initial pour in manual brewing allowing CO2 to escape from grounds

  • Brew Ratio: Relationship between coffee grounds and water amount

  • Contact Time: Duration that water and coffee grounds interact

  • Extraction: Process of dissolving coffee compounds into water

  • Bypass: Adding water to brewed coffee to adjust strength

  • Immersion: Brewing method where grounds soak in water

  • Pressure Brewing: Methods like espresso using pressure to extract coffee

white ceramic cup on silver espresso machine

Espresso-Specific Terms

  • Espresso Shot: Small serving of concentrated coffee brewed under pressure

  • Crema: Golden-brown foam layer on top of properly extracted espresso

  • Portafilter: Handle that holds ground coffee for espresso extraction

  • Basket: Filter container inside portafilter holding coffee grounds

  • Tamping: Compressing ground coffee in portafilter before brewing

  • Channeling: Uneven water flow through espresso puck causing poor extraction

  • Ristretto: Shorter, more concentrated espresso shot

  • Lungo: Longer espresso shot with more water

  • Doppio: Double shot of espresso

  • Americano: Espresso diluted with hot water

  • Macchiato: Espresso "stained" with a small amount of milk

  • Cortado: Espresso cut with equal amount of steamed milk

  • Flat White: Espresso with microfoam steamed milk

  • Latte: Espresso with steamed milk and small layer of foam

  • Cappuccino: Espresso with equal parts steamed milk and milk foam

  • Puck: Compressed coffee grounds in portafilter after tamping

  • Backflushing: Cleaning process for espresso machine group head

  • Pressure Profiling: Manipulating pressure during extraction

  • Pre-infusion: Low-pressure water introduction before full extraction

  • Pull: Act of making an espresso shot (from lever machines)

  • Naked Portafilter: Bottomless portafilter to observe extraction quality

a bell on a wooden box

Coffee Grinding

  • Burr Grinder: Grinder using two abrasive surfaces to crush beans to consistent size

  • Blade Grinder: Less precise grinder using spinning blades to chop beans

  • Grind Size: Particle size of ground coffee (e.g., fine, medium, coarse)

  • Espresso Grind: Very fine grind suitable for espresso

  • Drip Grind: Medium grind suitable for drip coffee makers

  • Coarse Grind: Larger particle size suitable for French press or cold brew

  • Turkish Grind: Extremely fine powder-like grind for Turkish coffee

  • Uniformity: Consistency of particle size in ground coffee

  • Calibration: Adjusting grinder settings for optimal performance

  • Stepless Grinder: Grinder with infinite adjustment possibilities

  • Retention: Ground coffee remaining in grinder after use

  • Single Dosing: Grinding exact amount of beans for one serving

  • Clumping: Unwanted aggregation of ground coffee particles

  • Fines: Very small particles created during grinding

  • Boulders: Oversized particles in ground coffee

people inside cafe

Flavor & Tasting Terms

  • Acidity: Bright, tangy quality (not sourness or pH level)

  • Body: Weight or mouthfeel of coffee on the palate

  • Sweetness: Pleasant sugary taste sensation

  • Bitterness: Sharp, pungent taste usually from over-extraction or dark roasts

  • Balance: Harmonious relationship between different taste components

  • Complexity: Multiple distinct flavor notes in coffee

  • Finish/Aftertaste: Taste that lingers after swallowing

  • Brightness: Positive acidic quality making coffee taste lively

  • Clean Cup: Coffee free from defects or off-flavors

  • Clarity: Distinctness of individual flavor notes

  • Astringency: Dry, pucker sensation similar to strong tea

  • Mouthfeel: Physical sensation of coffee in the mouth

  • Cupping Score: Numerical evaluation of coffee quality

  • Flavor Notes: Specific taste characteristics (e.g., chocolate, berry, nutty)

  • Defects: Undesirable flavors from poor processing or storage

  • TDS (Total Dissolved Solids): Measure of coffee concentration

  • Extraction Yield: Percentage of coffee grounds dissolved in water

  • Under-extracted: Insufficient dissolution resulting in sour, weak coffee

  • Over-extracted: Excessive dissolution resulting in bitter, harsh coffee

  • Tasting Flight: Multiple coffees served together for comparison

ceramic mug on table

Aroma Terms

  • Fragrance: Smell of dry ground coffee

  • Aroma: Smell of wet coffee during brewing

  • Floral: Flower-like aromas (e.g., jasmine, rose, lavender)

  • Fruity: Fruit-like aromas (e.g., berry, citrus, stone fruit)

  • Nutty: Nut-like aromas (e.g., almond, hazelnut, peanut)

  • Chocolatey: Chocolate-like aromas (e.g., cocoa, dark chocolate)

  • Caramel: Sweet, candy-like aromas

  • Spicy: Spice aromas (e.g., cinnamon, clove, cardamom)

  • Earthy: Soil-like or mushroom aromas

  • Woody: Timber or bark-like aromas

  • Herbal: Plant-like aromas (e.g., grass, hay, tea)

  • Winey: Fermented grape-like aromas

  • Smoky: Fire or tobacco-like aromas

  • Rubber: Unpleasant rubber or tire-like aromas (often a defect)

  • Medicinal: Chemical or phenolic aromas (often a defect)

  • Cereal: Grain-like aromas (e.g., toast, wheat, malt)

  • Enzymatic: Fresh fruit or vegetable aromas

  • Sugar Browning: Caramelization aromas from roasting

  • Dry Distillation: Aromas from fiber carbonization during roasting

round green and red berries

Coffee Industry & Culture

  • Barista: Professional coffee maker and server

  • Latte Art: Decorative patterns made on milk-based drinks

  • Third Wave Coffee: Movement focusing on coffee as artisanal food

  • Fourth Wave Coffee: Emphasis on science, technology, and sustainability

  • Direct Trade: Purchasing directly from farmers, often with higher payments

  • Fair Trade: Certification ensuring minimum prices for farmers

  • Organic: Certification for coffee grown without synthetic chemicals

  • Rainforest Alliance: Certification for environmentally sustainable practices

  • Shade Grown: Coffee cultivated under tree canopy for biodiversity

  • Bird Friendly: Certification for coffee farms providing bird habitat

  • Coffee Belt: Geographic zone between tropics where coffee grows

  • Crop to Cup: Entire supply chain from farm to consumer

  • Coffee Subscription: Regular delivery service for fresh coffee

  • Omni-roast: Coffee roasted to work well with multiple brewing methods

  • Coffee Passport: Record of coffee tastings and experiences

  • Sustainable Coffee: Practices promoting environmental and social responsibility

  • Coffee Auction: Event where specialty coffees are sold to highest bidders

  • Relationship Coffee: Long-term partnerships between roasters and producers

  • Vertical Integration: Business controlling multiple stages of supply chain

  • Traceable Coffee: Coffee with documented origin information

focus photo of white ceramic cup filled with coffee

Coffee Equipment Components

  • Group Head: Part of espresso machine where portafilter attaches

  • Steam Wand: Component for heating and texturing milk

  • Boiler: Water heating chamber in coffee machines

  • PID Controller: Precise temperature regulation system

  • Pressure Gauge: Instrument measuring brewing pressure

  • Brew Basket: Container holding coffee grounds in drip machines

  • Shower Screen: Disperses water evenly over coffee grounds

  • Heat Exchanger: System transferring heat between boilers

  • Dual Boiler: Espresso machine with separate boilers for brewing and steaming

  • Saturated Group: Group head design maintaining stable temperature

  • E61 Group: Specific commercial group head design with thermal stability

  • Flow Restrictor: Device controlling water flow rate

  • Solenoid Valve: Electromagnetic valve controlling water flow

  • Vibratory Pump: Pump type using vibration to create pressure

  • Rotary Pump: Quieter, more consistent pump type

  • Thermoblock: Rapid water heating element

  • Thermocoil: Coiled tube heating system

  • Gasket: Seal ensuring water-tight connection

  • Drip Tray: Container collecting waste water

  • Hopper: Container holding beans for grinder

  • Dosing Chamber: Area where ground coffee collects before dispensing

  • Brew Button: Control initiating coffee brewing

  • Shot Timer: Clock measuring extraction duration

  • Filter Holder: Device securing filter paper