Coffee Definitions
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The 'ABCs' of Coffee

Arabica

Coffee Arabica is a species of coffee which is grown at high altitudes and has a delicate flavour.

Barista

A person who has mastered the art of espresso making.

Blend

Two or more varieties of coffee from different regions blended together to create a unique flavour profile.

Caffeine

A chemical compound naturally present in coffee and tea.

Crema

The golden-coloured foam layer present on the surface of correctly extracted espresso coffee.

Demitasse

A small cup (70-90mL) used primarily for serving espresso shots.

Dose

The amount of ground coffee required to produce a shot of espresso. Normally this is 7-9 grams per shot.

Dump Bin or Knock Box

A container with a bar across the top, used to 'knock' the coffee grounds into from the group handle after extracting a shot.

Extraction

Where hot water is forced through ground coffee, extracting the elements to produce an espresso.

Green Coffee

Raw coffee beans which are yet to be roasted.

Purge

When a small quantity of water is made to flow through the group head or steam wand.

Robusta

The other main species of coffee, Coffea canephora, grows at lower altitudes and has a distinctive flavour profile.

Tamp or Tamping

The process of compressing the ground coffee in the filter basket to prepare it for extraction.

  • Crema:  The golden-coloured foam layer present on the surface of correctly extracted espresso coffee.Crema
  • Dose:  The amount of ground coffee required to produce a shot of espresso.  Normally this is 7-9 grams per shot.Dose
  • Extraction:  Where hot water is forced through ground coffee, extracting the elements to produce an espresso.Extraction
  • Green Coffee:  Raw coffee beans which are yet to be roasted.Green Coffee
  • Tamp or Tamping:  The process of compressing the ground coffee in the filter basket to prepare it for extraction.Tamp or Tamping
  • Arabica:  Coffea Arabica is a species of coffee which is grown at high altitudes and has a delicate flavour.Arabica
  • Robusta:  The other main species of coffee, Coffea canephora, grows at lower altitudes and has a distinctive flavor profile.Robusta