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Coffee Bar Glossary

Common terms for home coffee bars and espresso setups.

Bar mat
A rubber or silicone mat placed under a coffee machine to catch drips, absorb vibration, and protect the counter. Also called a drip mat or coffee bar mat.
Burr grinder
A grinder that crushes beans between two abrasive surfaces (burrs) for a consistent grind size. Flat burrs and conical burrs are the two main types. Produces far more even results than a blade grinder.
Canister
An airtight container for storing coffee beans. Good ones block light and have a one-way valve or vacuum seal to slow staling. Material matters less than the seal quality.
Coffee bar
A dedicated area or piece of furniture for making and serving coffee at home. Usually includes a machine, grinder, and storage. Can range from a countertop corner to a full cabinet setup.
Coffee nook
A coffee setup built into a small, defined space — an alcove, unused closet, or corner. The key distinction is the enclosed or tucked-away feel.
Coffee station
A compact coffee setup, usually on an existing counter or small cart. Implies something simpler and smaller than a full coffee bar.
Dialing in
Adjusting grind size, dose, and brew time to get the best flavor from a particular coffee. Every new bag needs some dialing in, especially with espresso.
Dosing funnel
A ring that sits on top of a portafilter to catch stray grounds while dosing. Keeps the counter clean and makes it easier to distribute grounds evenly.
Drip tray
The removable tray at the base of an espresso machine that catches overflow, drips, and rinse water. Needs emptying regularly.
Grouphead
The part of an espresso machine where the portafilter locks in and water is forced through the coffee. Keeping it clean prevents stale residue from affecting taste.
Hutch
A cabinet with an open upper shelf section, typically used as coffee bar furniture. Gives you enclosed storage below and display shelving above.
Knock box
A container with a padded bar across the middle for knocking spent espresso pucks out of the portafilter. Keeps the workflow clean and fast.
Moka pot
A stovetop coffee maker that brews by pushing steam-pressured water through ground coffee. Produces strong, concentrated coffee — not espresso, but closer to it than drip.
PID controller
A digital temperature controller found on some espresso machines. Keeps brew water at a precise, stable temperature instead of relying on a basic thermostat. Matters most for consistency.
Portafilter
The handled basket holder that locks into an espresso machine's grouphead. You dose ground coffee into it, tamp, and lock it in to brew. Standard size is 58mm; some home machines use 54mm.
Pour-over
A manual brewing method where you pour hot water over ground coffee in a filter cone (like a V60 or Chemex). Gives you control over every variable. Clean, clear cup.
Pressurized basket
A portafilter basket with a second wall that creates artificial crema. Forgiving of grind inconsistency — good for beginners, but limits how much you can improve your shots.
Puck screen
A thin metal mesh disc placed on top of the coffee puck before brewing. Distributes water more evenly across the puck and keeps the shower screen cleaner.
Pull a shot
To brew a single serving of espresso. The term comes from lever machines where you literally pulled a handle down. A standard shot is about 30ml extracted in 25-30 seconds.
Single dosing
Weighing out exactly one dose of beans per brew instead of keeping beans in the grinder hopper. Reduces waste and keeps beans fresher. Most common with espresso.
Steam wand
The metal nozzle on an espresso machine that produces steam for frothing milk. Technique matters more than the wand itself — you're stretching and texturing the milk, not just heating it.
Tamper
A flat-bottomed tool used to compress ground coffee in the portafilter before brewing. Even, level pressure is the goal. Calibrated tampers click at a set pressure to help with consistency.
WDT tool
Weiss Distribution Technique tool — a set of thin needles used to break up clumps in the coffee grounds before tamping. Helps water flow evenly through the puck for better extraction.