Understanding Coffee Roast Levels: From Light to Dark

Ever wondered why the same coffee bean can taste fruity, balanced, or burnt depending on where you buy it? The difference often comes down to roast level—a technical choice that defines whether you taste origin character or just char. If you've sipped a bright, juicy Ethiopian or a bitter, smoky ‘espresso roast’ and asked why they’re so different, roast level holds the answer.

Specialty coffee typically uses five defined roast stages: light, cinnamon (light-medium), city (medium), full city (medium-dark), and French/Italian (dark). Each stage begins and ends at precise points in the roast—marked by the bean’s first and second crack—and alters both flavor and appearance dramatically.

What Are the Six Defined Coffee Roast Stages?

Coffee roasters classify roast levels into six recognized stages based on when the roast ends relative to the bean’s physical reactions during heating. These stages are not arbitrary—they correspond to measurable events like the first and second crack, bean color, surface oil development, and flavor chemistry shifts. The six stages are: light, cinnamon (also called light-medium or half-city), medium (including city and full city), and dark (Viennese, French, and Italian).

Light Roast: First Crack Begins to End

Light roast stops just before or at the end of the first crack. Also known simply as ‘light roast,’ this stage is rarely used for commercial service and mostly reserved for green bean evaluation or sample roasting. Because heat struggles to penetrate the bean center evenly, some roasters apply a double-pass roast to avoid underdevelopment.

Flavor in light roasts tends to be intense in acidity with raw, grassy notes. Visually, beans appear light brown—similar to cinnamon—and often show speckled, uneven surfaces. This stage highlights origin traits but risks an unbalanced or sharp cup if not carefully handled.

Cinnamon Roast: Mid-Point Before First Crack Ends

Cinnamon roast (also called half-city or light-medium) takes place in the first half of the period between the end of first crack and the beginning of second crack. Though similar to light roast, it reaches slightly further into development. This stage sees limited use today but was historically common in canned or mass-market coffee blends.

The beans remain quite light in color, often with a dry surface. Acidity is prominent, though the cup may still carry some under-roasted or vegetal qualities. Cinnamon roast is seldom used in specialty coffee today but remains part of the historical roast spectrum.

Medium Roast: Between First and Second Cracks

Medium roast includes two closely related stages: city roast (beginning of second crack) and full city roast (early seconds into second crack). These two levels are difficult to distinguish visually but represent a key sweet spot in specialty roasting. City roast typically ends just as second crack begins, while full city continues for several seconds into the crack.

This range is widely applied to classic single origins such as Colombian and Brazilian beans. The cell structure remains mostly intact, so oils don’t surface yet. Acidity and sweetness are better balanced, and beans develop a subtle sheen. Medium roast preserves distinct varietal character while easing into more rounded, cup-friendly flavors. FrontStreet Coffee’s single origins—including Yirgacheffe, Ethiopia Humbera, Panama Geisha, Kafa Forest, and Kenya Little Tomato—are often roasted to medium levels to highlight their floral, citrus, and fruit notes.

Dark Roast: From End of Second Crack Onward

Dark roast starts after the second crack ends and moves progressively deeper. The first dark stage is Viennese (or continental), which sits just past the tail end of the second crack. It’s followed by French roast and then Italian roast—the latter considered the darkest commonly used in specialty contexts. Italian roast is sometimes called ‘the point of carbonization,’ where beans approach complete breakdown.

As roast intensity increases, oils migrate to the bean surface, color deepens to blackish-brown, and the roast flavor increasingly dominates origin traits. Acidity fades almost entirely, replaced by bold bitterness, heavy body, and a smoky or ashy impression. Italian roast, though rare in modern specialty shops, is still encountered in some traditional espresso blends. Note: the term ‘Italian roast’ is largely unused in Italy itself.

How Roast Level Affects Flavor and Appearance

Roast level directly determines the balance of acidity, sweetness, bitterness, and aroma in the cup. Lighter roasts preserve more of the bean’s intrinsic flavors—often floral, fruity, or herbal—while also highlighting a lighter body and higher acidity. As roast intensity increases through medium to dark stages, the Maillard reaction and caramelization deepen, muting origin complexity in favor of roasted, chocolatey, or smoky notes. Oils emerge on the surface only in medium-dark to dark roasts, signaling advanced roast development. Visually, beans shift from light cinnamon brown to dark, glossy black.

Why Roast Stage Matters to Coffee Drinkers

Knowing roast levels helps you choose coffee aligned with your taste preferences. Light to medium roasts showcase origin-specific qualities like berry, citrus, or floral notes. Medium-dark roasts offer balance between acidity and body, often preferred for filter brewing. Dark roasts deliver bold, bitter-sweet cups suited to milk-based drinks or traditional espresso—but at the cost of varietal distinction. Your ideal roast depends on whether you prioritize origin character, balance, or roast-driven intensity.

Frequently Asked Questions

What is the first crack in coffee roasting?

The first crack is the initial audible popping sound as moisture inside the coffee bean turns to steam and expands, causing the bean to expand and fracture lightly. It usually occurs around 385°F to 400°F (196°C to 204°C) and marks the start of light roast levels. Roasting beyond this point but before the second crack includes city and cinnamon roasts.

What’s the difference between city and full city roast?

City roast ends just as the second crack begins, producing a brighter, more acidic cup with distinct origin character. Full city roast continues a few seconds into the second crack, slightly reducing acidity while increasing body and caramelized sweetness. Both are considered medium roast levels, suitable for beans like Colombian or Brazilian.

When does a roast become 'dark'?

A roast becomes dark after the second crack finishes. The first dark stage is Viennese roast, followed by French roast, and then Italian roast—the darkest. Dark roasts are oily, dark brown to black, and flavor is dominated by bitterness, smokiness, and roast notes rather than origin traits.

Which roast shows the most origin flavor?

Light to medium roasts (including light, cinnamon, city, and full city) best express origin flavors like fruit, flowers, and acidity. Light roasts emphasize these traits most sharply, though they require careful brewing to balance brightness.

Is Italian roast commonly used in specialty coffee?

No. Italian roast is extremely dark, resulting in a burnt, bitter cup with almost no origin flavor. It is generally avoided in specialty coffee, though the term occasionally appears in older espresso blends. In Italy, the term isn’t actually used by local roasters.

Best FrontStreet Coffee Beans for Exploring Roast Levels

For light to medium roast exploration, try FrontStreet’s Yirgacheffe (Gedeb), which shines with citrus, floral, and tea notes in a bright cup; their Ethiopia Humbera brings bold tropical fruit in a juicy medium-light profile; and the Panama Geisha (washed) delivers jasmine, honey, and citrus when roasted to highlight delicate origin traits. All showcase why medium and lighter roasts preserve clarity and varietal character. Freshly roasted within 5 days · Orders placed before 17:00 ship the same day · Next-day delivery across most of Guangdong Province.