tags: [] - coffee/tasting - coffee/tasting/sensory aliases: - SCA Coffee Taster's Flavour Wheel - Coffee flavour wheel - Coffee Tasters Flavor Wheel

Dictionary of Coffee Flavours¶

Tags: #coffee/tasting #coffee/tasting/sensory Aliases: SCA Coffee Taster's Flavour Wheel, Coffee flavour wheel, Coffee Tasters Flavor Wheel Related: Coffee Tasting MOC | Cupping | Flavour Palette | Tasting Coffee | World Coffee Research Status: ✅ Complete

Overview¶

The SCA Coffee Taster's Flavour Wheel is a circular reference diagram developed jointly by the Specialty Coffee Association (SCA) and World Coffee Research (WCR) to provide a standardised vocabulary for describing the flavour and aroma characteristics of coffee. It organises coffee descriptors from broad categories at the centre — such as fruity, floral, roasted, and sweet — to specific sub-descriptors at the outer edge, including strawberry, jasmine, cedar, and brown sugar. The wheel was first published by the SCA in 1995 and substantially revised in 2016, when WCR's Sensory Lexicon was integrated to align each descriptor with a defined physical reference standard.

Development and History¶

The original SCA Flavour Wheel was created in 1995 as a tool to standardise cupping vocabulary within the specialty coffee industry. Before its introduction, tasting descriptors across cafés, roasters, and competitions were inconsistent, making communication across the supply chain difficult.

The 2016 revision, conducted in collaboration with World Coffee Research, incorporated the WCR Sensory Lexicon — a database of coffee flavour and aroma attributes, each calibrated to a physical reference standard: a specific food, chemical, or material that a trained taster can smell or taste to anchor the term. This integration made the wheel significantly more precise; terms such as "floral" or "berry" now correspond to defined sensory benchmarks rather than impressionistic description.

The updated wheel contains over 100 descriptors across nine primary categories. It is produced under a Creative Commons licence and is freely available from the SCA.

Structure of the Wheel¶

The wheel is arranged in concentric rings:

Ring	Content	Examples
Inner ring	Broad primary categories	Fruity, Floral, Sweet, Nutty/Cocoa, Spice, Roasted, Other
Middle ring	Sub-categories	Berry, Citrus, Dried fruit; Dark chocolate, Brown spice
Outer ring	Specific descriptors	Strawberry, Lemon, Date; Tobacco, Cedar, Dark chocolate

The nine primary categories on the inner ring are: Fruity, Floral, Sweet, Nutty / Cocoa, Spice, Roasted, Green / Vegetative, Other, and Sour / Fermented.

Each outer-ring term in the 2016 version corresponds to a reference standard defined in the WCR Sensory Lexicon, enabling systematic calibration between tasters and organisations.

Using the Wheel in Tasting¶

The wheel is used in cupping and coffee evaluation to build a structured vocabulary for a coffee's sensory characteristics. A taster begins at the inner ring by identifying the broadest applicable category — fruity, roasted, floral, or similar. Moving outward to the middle ring narrows the descriptor — fruity → berry versus citrus versus dried fruit. At the outer ring, a specific term is selected where possible — berry → strawberry, raspberry, or blueberry.

Tasters with access to physical reference standards can calibrate their perception against the defined benchmark for each outer-ring term. Outer-ring precision is associated with training and cupping experience. Descriptors such as "fruity" or "sweet" are accessible to any taster; specific outer-ring terms such as "raisin," "jasmine," or "cedar" require familiarity with the reference standard and practice under cupping conditions.

Flavour, Aroma, and Taste¶

The wheel encompasses descriptors drawn from all sensory modalities relevant to coffee perception:

Taste — the five basic tastes (sweet, sour, bitter, salty, umami) contributing to flavour perception on the tongue
Retronasal aroma — volatile compounds perceived via the nasal passage at the back of the throat during tasting; distinct from orthonasal aroma
Orthonasal aroma — fragrance and aroma perceived directly through the nose; assessed as dry fragrance before brewing and wet aroma in the cup

Some wheel categories are primarily aroma-driven — the Floral and Spice categories, for instance — while others reflect direct taste sensations, such as Sour / Fermented or Sweet.

Key Facts¶

Developed by the SCA in 1995; substantially revised with World Coffee Research in 2016
Contains over 100 flavour and aroma descriptors across nine primary inner-ring categories
The 2016 version aligns each outer-ring term with a physical reference standard from the WCR Sensory Lexicon
Available under a Creative Commons licence from the SCA
Provides a shared vocabulary for cupping, quality assessment, roasting feedback, and retail flavour description
The wheel encompasses taste, retronasal aroma, and orthonasal aroma descriptors

References¶

Changelog¶

Date Change

2026-05-02 Compliance review: full rewrite — removed inline source+N citation markers, ../ wikilinks, second-person language, chatbot ending, internal "Why it matters for Coffeepedia" section; corrected American spelling (Flavor → Flavour in headings); rebuilt as encyclopedic article covering SCA Flavour Wheel development, structure, and tasting use; added frontmatter, metadata block, Key Facts, References, Changelog, copyright

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