Beans

Of all the variables in a cup of coffee, the beans matter most. Below is the minimum useful framework for picking beans, with no brand spam.

Freshness

Coffee tastes best somewhere between five and twenty-five days from the roast date. Before five, the beans are still off-gassing CO2 and brew unevenly. After about a month, the volatile aromatics fade and the cup goes flat.

Always look for a roast date on the bag, not a "best-by" date. If a bag does not list a roast date, assume it is old. Supermarket bags generally are.

Origin

The country and region a coffee is grown shape its base flavor. As a rough first map:

• Ethiopia — bright, floral, tea-like, often blueberry or jasmine notes. Ethiopian Yirgacheffes and Sidamos are common entry points to specialty coffee.
• Kenya — punchy, blackcurrant, big acidity. Polarizing in a fun way.
• Colombia / Brazil / Central America — balanced, sweet, often chocolatey or nutty. Easiest "all-day cup" profile.
• Sumatra / Indonesia — earthy, savory, low acidity. Less common in specialty third-wave shops but loved by many.

Single-origin coffees showcase one region; blends mix multiple for balance or for espresso.

Roast level

Roast level is independent of origin. A common loose categorization:

• Light roast — origin character is loud. More acidity. Best for filter.
• Medium roast — balanced, the most common third-wave default.
• Dark roast — roast character (bittersweet, smoky) dominates. Best for milk drinks and espresso, generally not for filter brewing of high-end beans.

Specialty roasters tend toward lighter; legacy brands tend toward darker. Neither is right; they are different products.

How to find beans you will love

Buy a small bag from a couple of different roasters and origins. Brew them the same way at the same recipe. Take notes on what you actually liked. Do this three or four times and you will have a sense of what to repeat-buy.

The community in the Telegram group does this constantly. Drop in if you want recommendations.