Coffee Beans

Q: What are the four types of coffee bean?

Arabica, Robusta, Liberica and Excelsa. Arabica is 60–70% of global production; Robusta carries roughly twice the caffeine.

Q: Are dark roasts higher in caffeine?

No. Roasting burns off some caffeine, so a light roast retains marginally more by weight. The difference is small but runs opposite to expectation.

Q: How long do coffee beans stay fresh?

Beans are at their best 7 to 21 days after roasting. Look for a recent roast date, strong aroma, and an oily sheen on dark roasts.

Q: Is coffee technically a bean?

No. It is the seed of a cherry-like fruit. And espresso beans are not a separate species, they are the same beans, roasted differently.

Every great cup of coffee starts with the right beans. But with so many varieties, roast levels, and origins to choose from, it can feel overwhelming to know where to start.

There are four main types of coffee beans: Arabica, Robusta, Liberica, and Excelsa. Arabica accounts for about 60-70% of global production and is known for its smooth, complex flavor. Robusta is bolder and higher in caffeine. Liberica and Excelsa are rarer specialty beans with distinctive flavor profiles.

Below, you will find a quick comparison of all four bean types, guides to choosing beans for different brewing methods, and our full library of coffee bean articles.

The 4 Types of Coffee Beans

All coffee comes from one of four main species of the Coffea plant. Each produces beans with a very different flavor, caffeine content, and growing profile.

Bean Type	Flavor Profile	Caffeine	% of Global Production	Best For
Arabica	Smooth, sweet, complex. Notes of fruit, sugar, and berries	~1.2%	60-70%	Pour over, drip, espresso
Robusta	Bold, earthy, bitter. Notes of dark chocolate and nuts	~2.2%	25-30%	Espresso blends, instant coffee
Liberica	Smoky, floral, woody. Unusual and polarizing	~1.2%	~2%	Specialty / single origin
Excelsa	Tart, fruity, light body. Often blended for complexity	~1.0%	<1%	Blending, adventurous drinkers

The four main types of coffee beans compared. Caffeine content is percentage by dry weight.

For a deep dive into each type, including how they taste, where they grow, and what makes them unique, read our full guide to the 4 types of coffee beans.

Best Coffee Beans by Brewing Method

Different brewing methods extract flavor differently, so the ideal bean varies depending on how you make your coffee. Here are our top picks:

Brewing Method	Ideal Roast	Our Guide
Espresso machine	Medium to dark	Best beans for cappuccino
French press	Medium to coarse grind	Best coffee for French press
Pour over / Drip	Light to medium	Best beans for beginners
Latte / Milk drinks	Medium (pairs well with milk)	Best beans for latte
Cold brew	Medium to dark (smooth, low acid)	Best beans for cold brew

Recommended roast levels and our detailed guides for each brewing method.

Looking for something specific? Try our guides to coffee beans with chocolate notes or oil-free coffee beans for super-automatic machines.

Coffee Bean Storage and Freshness

Even the best beans will taste flat if they are stored improperly or used too long after roasting. Here is a quick overview of what you need to know:

Peak freshness Coffee beans are at their best 7 to 21 days after roasting. After that, flavor starts to decline.

How to tell if fresh Look for an oily sheen (on dark roasts), a strong aroma, and a recent roast date.

Oily beans Some oiliness is normal for dark roasts, but can clog grinders and go rancid faster. Moisture Keep beans away from moisture. If they get damp, here is how to remove moisture from coffee beans. Old beans Don't throw them out. Old coffee beans have plenty of uses, from cold brew to body scrubs. Green beans Unroasted green beans last much longer. Learn the best ways to store green coffee beans.

How to Choose Coffee Beans

Not sure which beans to buy? Use this quick guide based on your taste preferences:

If you like…	Choose this
Smooth, balanced, fruity	100% Arabica, light to medium roast
Bold, strong, high caffeine	Robusta blend or dark roast Arabica
Sweet, chocolatey	Medium roast with chocolate notes
Low acidity	Dark roast or cold brew beans
Something unique and adventurous	Single-origin Liberica or Excelsa
New to specialty coffee	Beans for beginners (medium roast Arabica)

A quick guide to choosing coffee beans based on your taste preferences.

The grinder you use also plays a big role. A burr grinder produces a more consistent grind than a blade grinder, which makes a noticeable difference in flavor.

Coffee Roast Levels Explained

The roast level transforms the same green coffee bean into something entirely different. It is one of the most important decisions when buying coffee, yet most labels give you only a vague description.

Roast Level	Colour	Flavour Profile	Caffeine	Best For
Light roast	Light brown, no oil	Bright, fruity, acidic, floral	Slightly higher	Pour over, drip, filter
Medium roast	Medium brown, minimal oil	Balanced, sweet, caramel, chocolate notes	Moderate	Espresso, drip, latte
Medium-dark roast	Dark brown, some oil	Rich, bittersweet, less acidity	Moderate	Espresso, Moka pot
Dark roast	Very dark, oily surface	Bold, smoky, bitter, low acidity	Slightly lower	Espresso blends, cold brew

Coffee roast levels compared by colour, flavour, caffeine, and best brewing method.

One common misconception: dark roasts are not higher in caffeine. Because roasting burns off some caffeine, a light roast actually retains marginally more caffeine by weight.