Tools and directories

Cupping, and why it is a procedure rather than tasting

Updated October 2026

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What it standardizes Why the same setup every time matters more than the exact setup Always cup against something Write it down in the same words each time Cup at a fixed time of day It is also how you decide what to buy Cup blind where you can References

Cupping exists because tasting coffee casually compares two brews as much as two coffees, and the method removes that.

What it standardizes

The ratio of coffee to water, the grind, the water temperature, the steep time and the vessel. Fixing all of those means the only remaining variable is the coffee, which is the entire point and the reason a casual cup cannot do the same job.

Why the same setup every time matters more than the exact setup

Consistency across your own sessions is what lets you compare today with last month. An unusual ratio used identically every time is more useful than a standard one applied loosely, though following the common method also lets you compare notes with other people.

Always cup against something

A reference sample from the last good roast, or two candidate lots side by side. Judging a coffee alone is judging it against memory, and memory drifts in the same direction the product does.

Write it down in the same words each time

A short fixed vocabulary, used consistently, is worth more than an elaborate one used loosely. The goal is notes you can compare across months, which requires that the same word meant the same thing in March as in September.

Cup at a fixed time of day

Palate changes through the day and after food and coffee. Morning, before anything else, is the convention for a reason, and a session squeezed in after lunch is not comparable to one from first thing.

It is also how you decide what to buy

Green is bought on samples cupped before committing, which makes this the skill that decides your product more than the roasting does. A roaster who cups well and roasts adequately will beat one who does the reverse.

Knowing which cup is which changes what you taste, including for experienced people. Having somebody else arrange the cups, or simply numbering them and not looking, is free and it removes the single largest source of error in a small operation’s tasting.

References

21 CFR 101, Food Labeling, which carries the general requirements that apply here in the absence of a standard of identity: the statement of identity, net quantity, ingredient list and the name and place of business of the responsible party. law.cornell.edu

Written from federal regulation and from the published physics and chemistry of staling, not from a laboratory. There is no standard of identity for coffee or tea, so most of what governs a product here is the general requirement that labels be truthful and claims be substantiated. Anything here is a starting point for a conversation with your state department of agriculture, not a determination that you comply.