Coffee and cafe terms

Glossary

Essential terms for brewing consistency, espresso workflow, and cafe operations.

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Published terms

Browse the glossary by topic

Each section groups related definitions so you can scan brewing, service, and cafe operations without digging through a long index.

Brewing basics

Core concepts that help you brew repeatable, better-tasting coffee.

Acidity: Bright, crisp sensations often associated with fruit and citrus.
Aftertaste: Flavors that remain after swallowing.
Agitation: Movement during brewing that changes extraction rate.
Anaerobic fermentation: Fermentation in low-oxygen conditions that can create intense, distinctive flavors.

Drying, puckering mouthfeel that can come from over-extraction or fines.

Balance

How well sweetness, acidity and bitterness work together.

Batch brew

Filter coffee brewed automatically in larger batches.

Bitterness

Bitter sensations that increase with higher extraction or darker roasts.

Bloom

An initial pour in manual brewing that releases trapped gases before main extraction.

Body

The weight and texture of a drink in the mouth.

Boulders

Large coffee particles that can under-extract.

Brew ratio

The proportion between dry coffee dose and beverage output, commonly expressed as 1:x.

Bypass

Adding clean water after brewing to hit a target strength.

Clarity

How distinctly individual flavors are separated and easy to identify.

Contact time

How long water stays in contact with coffee.

Cupping

Standardized tasting method used to evaluate aroma and flavor.

Degassing

Release of CO2 from freshly roasted coffee.

Extraction

The process of dissolving flavor compounds from coffee grounds into water during brewing.

Filter coffee

Coffee brewed through a filter, usually clearer and lighter than espresso.

Fines

Very small coffee particles that can slow flow and add harshness.

Freshness

How recently coffee was roasted and how well it was stored.

Grind size

The particle size of ground coffee, typically adjusted finer or coarser to control flow and extraction.

Honey process

A processing style between washed and natural, drying with some mucilage left on.

Immersion brewing

Brewing by steeping grounds in water before filtering.

Metal filter

Reusable mesh filter that lets more oils and texture through.

Mineral content

Dissolved minerals (hardness and alkalinity) that affect flavor and extraction.

Natural

A processing style where coffee dries in the fruit, often boosting sweetness and fruit notes.

Paper filter

Disposable filter that traps oils and fines for a cleaner cup.

Percolation brewing

Brewing where water passes through a bed of coffee.

Pour-over

Manual percolation brewing in a dripper.

Processing method

How coffee is processed after harvest, shaping flavor and texture.

Roast date

The date coffee was roasted; key for freshness and brewing behavior.

Roast level

How light or dark a coffee is roasted.

Single origin

Coffee sourced from one farm, cooperative, or a specific region.

Sweetness

Perceived sugar-like flavors that often come from balanced extraction.

Tasting notes

Descriptors used to communicate perceived aromas and flavors.

TDS

Total Dissolved Solids, a measurement of dissolved coffee concentration in the brewed beverage.

Varietal

The coffee plant variety (such as Bourbon or Geisha) that influences flavor.

Washed

A processing style where fruit is removed before drying, often giving clean flavors.

Water quality

Minerals and impurities in water that shape taste and scaling.

Water temperature

Brewing water temperature that affects speed and balance.

Espresso workflow

Terms used to dial in and run consistent espresso service.

Americano: Espresso diluted with hot water to create a longer drink.
Backflush: Cleaning that reverses flow through the group head using a blind basket.
Basket: Metal filter basket that holds the coffee dose for espresso.
Bottomless portafilter: Portafilter without spouts, used to observe extraction from the basket bottom.
Cappuccino: Espresso with steamed milk and a thicker foam layer than a latte.
Channeling: Water finding fast paths through the puck, causing uneven extraction.
Cortado: Espresso with a small amount of warm milk to soften intensity.
Crema: Foam-like layer on espresso formed by emulsified oils and CO2.
Dialing in: The process of adjusting brew variables to achieve a target taste and recipe consistency.
Distribution: Evenly spreading grounds in the basket before tamping.
Dose: The amount of dry coffee used for one brew, usually measured in grams.
Espresso: A concentrated coffee brewed by forcing hot water through finely ground coffee under pressure.
Flat white: Milk drink with thinner foam and stronger coffee presence than a latte.
Flow rate: How quickly espresso flows, often tracked as grams per second.
Group head: The part of the espresso machine where the portafilter locks in and water exits.
Latte: Espresso with steamed milk, typically milk-forward and smooth.
Latte art: Patterns poured into milk drinks using crema and textured milk.
Lungo: Longer espresso with higher yield, lighter and more diluted.
Microfoam: Fine, glossy milk foam used for smooth texture and latte art.
Portafilter: Handled holder that locks into the machine and holds the basket.
Pre-infusion: A brief low-pressure wetting phase before full espresso pressure is applied.
Pressure profile: How pump pressure changes during a shot.
Puck preparation: All steps used to prepare the espresso puck before brewing.
Purge: Brief flush of water or steam to clear residue and stabilize temperature.
Ristretto: Shorter espresso with lower yield, often more intense and syrupy.
Shot time: Duration of an espresso extraction, measured in seconds.
Steam wand: Steam nozzle used to heat and texture milk.
Tamping: Compressing coffee in the basket to create a level, stable puck.
WDT: Stirring grounds with thin needles to break clumps and improve evenness.
Yield: The beverage output weight in grams, measured in the cup during brewing.

Policies and amenities

Terms that explain how cafe policies and amenities affect work and comfort.

Accessible restroom: Restroom designed for accessibility and usable route.
Air conditioning: Cooling and ventilation that affect comfort in warm weather.
Allergen information: Info about allergens in menu items and possible cross-contact.
Bike parking: Ability to park a bicycle safely near the cafe.
Cashless: Policy where only card or digital payments are accepted.
Dog policy: A cafe rule that defines whether dogs are welcome, restricted, or not allowed.
Gluten-free options: Availability of gluten-free items and how strictly they are handled.
Kid-friendly: Cafe that welcomes children and provides practical support.
Laptop-friendly: A cafe policy condition where working on a laptop is explicitly allowed under defined rules.
Loyalty program: Rewards system for repeat purchases, such as stamps or points.
Meeting-friendly: Cafe conditions that support conversations or small meetings.
Music volume: Background volume that affects conversation and focus.
Outdoor seating: Tables or seating available outside the cafe.
Outlet access: How available and usable electrical outlets are for guests during a cafe visit.
Parking availability: How easy it is to find car parking near the cafe.
Peak hours: Busiest times when seating is scarce and service slows.
Queue system: How lines work: ordering, paying and pickup flow.
Quiet space: Area where noise is kept lower for focus or meetings.
Reservation policy: Rules for booking tables and when reservations are accepted.
Restroom availability: Whether a cafe has a customer restroom and any access rules.
Reusable cup policy: Rules for accepting customer cups and any discounts.
Seating time limit: Rule limiting how long you can occupy a table.
Self-service: Ordering at the counter and picking up drinks yourself.
Service charge: Automatic fee added to the bill for service.
Split bill: Whether payment can be divided between multiple people or cards.
Step-free access: Entrance and movement conditions that allow access without stairs or major barriers.
Table service: Staff take orders and serve drinks to your table.
Takeaway: Ordering coffee to go in a takeaway cup.
Tipping: Optional extra payment for staff, sometimes prompted at checkout.
Vegan options: Menu items and substitutions that are suitable for a fully plant-based diet.
Water refill: Policy for free drinking water or bottle refills.
Wi-Fi stability: The practical reliability of wireless internet for calls, browsing, and sustained work sessions.