Coffee Beans

Arabica coffee is sweeter, more nuanced, and generally considered higher quality. Robusta is stronger, more bitter, and contains nearly twice as much caffeine. Most specialty coffee — including the beans you’d buy from a roaster for home espresso — is 100% Arabica. Robusta appears most often in blends, instant coffee, and Italian-style espresso for its crema and caffeine kick. Arabica vs Robusta at a Glance Arabica Robusta Flavor Sweet, complex, fruity/nutty, low bitterness Strong, bitter, earthy, woody Caffeine 1.2–1.5% of bean weight 2.2–2.7% of bean weight Acidity Higher, brighter Lower, flat Crema (in espresso) Thinner, lighter Thicker, darker, more persistent Growing altitude 600–2000m (high altitude) 0–800m (lowland) Price More expensive Cheaper Where it’s used Specialty coffee, single origins, premium blends Instant coffee, Italian espresso blends, budget beans % of global production ~60% ~40% Flavor Differences Arabica produces a wide range of flavor profiles depending on origin and roast: ...

Whole coffee beans last 2–4 weeks after opening for peak flavor, or 1–3 months when stored in an airtight container away from light and heat. Ground coffee lasts just 1–2 weeks before flavor degrades significantly. For espresso specifically, most roasters recommend brewing within 7–14 days of the roast date for the best shot. Coffee doesn’t “go bad” in the food safety sense — it won’t make you sick. But it does go stale, losing the aromatics and CO₂ that make it taste good. Here’s exactly how long it lasts under every condition. ...

Espresso beans and coffee beans are the same thing. There is no special variety of coffee plant that produces “espresso beans.” The label “espresso” on a bag of beans describes the roast profile and intended brewing method — not a different species or botanical variety. Here’s what that actually means for you. What “Espresso Beans” Actually Means When a roaster labels beans as “espresso,” they’re typically telling you two things: ...