3.3 Olfactory Category Examples Practical & Library Drills

The olfactory practical is the CVA-era replacement for the old Le Nez du Café vial exams. It asks a practical question: when you smell something, can you place it in the right Descriptive Form box and describe it clearly?

What the SCA says

The SCA's preparation page states that the exam "evaluates your ability to accurately recognize and describe olfactory sensations." Its practice advice:

• Set up olfactory category examples using the suggested ingredients or products in the CVA Olfactory Example Library.
• Practice blindly identifying the Descriptive Form CATA box represented by each example.

The SCA's course schedule introduces olfactory category examples on Day 2 and places the practical exam on Day 3. The number of examples and the pass mark are not published, so train for accuracy across every box.

The CVA Olfactory Example Library

The library sits on the SCA's Coffee Value Assessment pages. The SCA describes it as a list of olfactory category examples that:

• Correlate with the check-all-that-apply boxes on the Descriptive Form.
• Have been tested and vetted by the SCA and cover a range of options, from items readily available in supermarkets to more specialized resources.
• Include brief preparation instructions for each example.
• Are available in English, Spanish, Portuguese, Korean, and simplified and traditional Chinese.

SCA-103 adds that category examples are listed from most ideal to helpful, with suggested brands where available. It also calls the list a "living document" that may gain examples as use of the system shows new descriptors becoming important.

An SCA article on CVA practice activities shows how to use the library. For a sweetness exercise it uses five examples from the list — brown sugar, vanilla/vanillin, fruity, berry, and citrus fruit — prepared as directed and labeled one to five.

Building a practice kit

Prepare one example for each top category and each subcategory box: nine top categories plus the subcategories (Berry, Dried Fruit, Citrus Fruit, Sour, Fermented, Chemical, Musty/Earthy, Woody, Cereal, Burnt, Tobacco, Nutty, Cocoa, Vanilla/Vanillin, Brown Sugar). Follow the library's preparation notes. Then:

1. Put each example in an identical covered container, such as an opaque cup or jar with a lid.
2. Label containers with random three-digit codes and keep the key elsewhere.
3. Replace perishable examples on the schedule the instructions give, and discard anything that smells off.

A three-stage drill

Track results in a table across sessions. Patterns in your mistakes show which boxes need more exposure.

Sniffing technique

• Short, gentle sniffs beat one long inhalation. A long breath quickly adapts your receptors to the odor.
• Close the container after each assessment so the aroma does not spread across the table.
• Reset between samples by breathing normal room air for a few seconds. Avoid strong odors such as coffee beans, perfume, or mint, which add to the load on your nose.
• Commit, then verify. Write a first answer, then return only to the examples you marked uncertain.

Confusable neighbors

Most errors happen between boxes that share character:

Describing, not only naming

Because the SCA says the exam evaluates whether you can recognize and describe, practice adding a short description after each box name, for example "Berry — jammy, dark, slightly sour." Clear description is also what the Descriptive Assessment practical rewards when you add freely elicited words to CATA selections.

Linking the drill to cupping

After a few weeks of jar drills, move the skill onto coffee. During a cupping, write the boxes you would select before looking at anyone else's notes. Then compare with a reference cupper. The jars teach the categories, and the cuppings teach you to find those categories inside a complex coffee aroma.

Example session log

A log like this shows progress at two levels and tells you which pairs to drill side by side, unblinded, before the next blind session.