A short descriptor on a coffee bag — "blueberry, dark chocolate, brown sugar" — meant to tell you what flavors you should expect to find in the cup. Roasters write them based on cuppings of that specific lot. They're a prediction, not a guarantee, and they read better as a vocabulary scaffold than as a literal taste menu.
The Specialty Coffee Association publishes a Coffee Taster's Flavor Wheel that organizes the recognized vocabulary: fruity, floral, sweet, nutty/cocoa, spices, roasted, sour/fermented, green/vegetative. Most professional notes draw from this wheel.
How to read a note honestly
A bag that says "blueberry, milk chocolate, vanilla" doesn't mean the cup will literally taste like a blueberry milkshake. It means: the dominant fruit aromatic resembles blueberry, the body and sweetness lean cocoa-and-dairy, and the finish carries a familiar vanilla character. You're tasting coffee — the notes are family resemblances, not flavor concentrates.
Some notes are factually grounded: a Kenya scoring high on phosphoric acid will reliably read as blackcurrant. Some are aspirational: roasters reach for the loudest fruit even when it's faint. The only way to learn which roasters' notes you can trust is to brew and taste.
What to do when you don't taste them
Three options. Brew differently — under-extracted cups hide the sweet middle where most descriptors live. Try a fresher bag — aromatic notes go quiet first in stale beans. Trust your tongue — your perception is the truth of the cup, the note is one person's prediction. If you taste caramel and chocolate where the bag says peach, the cup is caramel and chocolate.