Sensory Science MOC¶

Sensory science in coffee is the systematic study of how taste, smell, and mouthfeel are perceived, measured, and communicated. It combines physiology — how the olfactory and gustatory systems function — with standardised evaluation methodology, descriptor language, and statistical calibration to transform subjective experience into repeatable, communicable assessments. This MOC maps the biology of coffee perception, evaluation protocols, descriptor frameworks, and the professional certifications built on sensory competency.

Deep Dives¶

Article	What it covers
Sensory Science	Overview of sensory science as applied to coffee evaluation
Sensory Foundations	Core biology of taste, smell, and mouthfeel perception
SCA Cupping Protocol	The industry-standard method for sensory evaluation
SCA Cupping Form	Understanding and using the 100-point scoresheet
SCA Flavour Wheel	Structure, categories, and how to navigate the wheel
WCR Sensory Lexicon	Scientific definitions and reference standards for descriptors
Tasting and Evaluation	Practical guide to structured coffee tasting
Q Grader Certification	The CQI Q Grader programme and what it assesses

Sub-MOCs¶

MOC	Covers
Coffee Tasting MOC	Cupping protocols, SCA scoring attributes, flavour descriptors, and sensory evaluation skills
Coffee Defects MOC	Physical, chemical, and systemic flaws that degrade cup quality across the value chain
Quality Control MOC	Systematic evaluation, measurement, and maintenance of standards at every stage from cherry to cup

Physiology of Perception¶

Smell: Aroma | Aroma Identification | Aftertaste | AftertasteFinish | Aftertaste_Evolution

Flavour memory: Flavour Memory | Flavour Palette

Cupping and Evaluation Methods¶

Protocols: SCA Cupping Protocol | Cupping Protocol | Cupping | Coffee Cupping | Expert Cupping

Scoring: SCA Cupping Form | Aftertaste_Scoring | 100-Point Scale | Specialty Grade

Specialised cupping: Production_Cupping | Blind_Tasting | Palate Calibration | Extraction Tasting

Descriptors and Language¶

Frameworks: SCA Flavour Wheel | SCA_Flavour_Wheel | WCR Sensory Lexicon | Dictionary of Coffee Flavours

Descriptor categories: Floral Flavours | Fruity Flavours | Aroma cup

Tasting practice: Tasting Coffee | Tasting Coffee Properly | Aroma_Identification

Training and Calibration¶

Skills development: Barista Sensory Skills | Sensory Training Leadership | Module 5 - Sensory Evaluation & Roast Quality

Practice methods: Blind_Tasting | Palate Calibration | Defect Recognition Training

Professional Certifications¶

Q Grader: Q Grader Certification | Q Grader Skills | Q Grading

SCA: SCA Sensory Skills | AST_Sensory_Analysis

Sensory in Context¶

For roasters: Map roast stages to flavour outcomes | roast defect → flavour fault reference table | Module 5 - Sensory Evaluation & Roast Quality

For origins: Coffee Origin Flavour Profiles | What do the four zones mean for coffee taste

Emerging methods: AI_Sensory_Prediction

Flavour Development MOC — the chemistry and reactions that create the flavours being evaluated
Quality Control MOC — cupping and sensory evaluation as a QC tool
Coffee Chemistry MOC — molecular basis of what sensory evaluation detects
Barista Skills Development MOC — sensory skills in daily café practice
Specialty Coffee Association MOC — SCA standards and sensory certification context

Essential Resources¶

Books: The Professional Barista's Handbook (Scott Rao) · Tasting Coffee: An Odyssey (Laura Semo) · Coffee Tasting (SCA reference guide)

Online: SCA Sensory Skills programme · Coffee Quality Institute (coffeeinstitute.org) · WCR Sensory Lexicon (worldcoffeeresearch.org)

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