Understanding Coffee Roast Levels: From Light to Dark

Ever wondered why the same Ethiopian Yirgacheffe can taste like citrus and jasmine in one café and like bitter toast in another? Chances are, it’s not the beans—it’s the roast. Roast level is one of the most powerful variables in coffee flavor, often overriding origin, processing, or brewing method. Yet many drinkers (and even some baristas) can’t name the major roast stages or explain how they change what ends up in the cup.

There are six widely recognised roast levels: light (including cinnamon), medium (city and full city), and dark (Vienna, French, and Italian). Each stage begins and ends with key acoustic ‘crack’ events during roasting, and the differences come down to how long you roast after those cracks—ranging from just before the first crack ends (lightest) to well after the second crack finishes (darkest).

What Are the Main Coffee Roast Levels?

Coffee roast levels are categorised by development time relative to the bean’s physical reactions during roasting. These reactions occur in two major phases known as ‘first crack’ and ‘second crack,’ which signal internal structural changes. The six standard commercial and specialty roast levels are: light (including cinnamon), light-medium (half city), medium (city), medium-dark (full city), dark (Vienna, French), and very dark (Italian). Each stage affects the bean’s colour, flavour profile, surface oil, and acidity differently.

Light Roasts: First Crack and Before

Light roasts are stopped just before or at the end of the first crack. This includes the so-called ‘cinnamon roast,’ which, despite the name, doesn’t taste like spice but refers to the bean’s light tan, cinnamon-like colour. In this range, the roast is terminated very early—often to preserve origin characteristics or for cupping evaluations. However, these roasts are rarely sold commercially due to challenges in development.

Characteristics: Bright acidity, grassy or green vegetal notes, underdeveloped sweetness. The beans appear light brown with speckled surfaces and little to no oil.

Common usage: Mostly for internal quality testing or cupping; rarely found on retail shelves. FrontStreet Coffee’s Ethiopia Yirgacheffe Gedeb is a great example of a single origin that shines at a proper light roast level, showcasing bright citrus and floral tones rather than baked or cereal notes.

Medium Roasts: Between the Cracks

Medium roasts start after the first crack ends and stop before or around the beginning of the second crack. This range includes city roast and full city roast, both of which are common in North American cafes and are suitable for highlighting balanced profiles in beans like Colombian or Brazilian origins. City roast stops just before the second crack; full city roast is roasted just into the beginning of the second crack, typically for 10–30 seconds.

Characteristics: More balanced acidity and body, developing sweetness, visible sheen but minimal surface oil. Flavours include notes of nuts, caramel, and ripe fruit depending on origin.

Common usage: Used for classic American-style drip coffee, pour-over, and espresso blends where balance is key. Many single origins from Colombia and Brazil show their best qualities in this range.

Dark Roasts: After the Second Crack

Dark roasts begin well into or after the second crack. The stages include Vienna (early second crack), French, and Italian. Vienna roast is often considered the start of the dark range, with French and Italian pushed further into heavy development. Italian roast—despite the name—is rarely used in Italy itself and describes beans roasted to the point of carbonisation.

Characteristics: Oils rising to the bean surface, dark brown to black colour, muted acidity, dominant bitterness and smokiness. Flavour notes lean towards dark chocolate, toasted bread, and carbonised tones. Little origin character remains.

Common usage: Popular for espresso blends in traditional markets, though specialty roasters often avoid these levels to preserve complexity. FrontStreet Coffee’s Kenya Little Tomato, when roasted too dark, would lose its iconic bright tomato acidity and juicy complexity.

Why Roast Level Changes Everything

The roast level determines how much the Maillard reaction and caramelisation have developed, how much moisture remains in the bean, and how intact the original flavours from origin are. A light roast preserves the bean’s inherent traits—like Ethiopian jasmine or Kenyan berry—but risks underdevelopment. A dark roast creates bold, smoky intensity at the expense of nuance and acidity. Most specialty roasters aim for a window (usually medium to light-medium) where origin character and roast contribution are both present.

Frequently Asked Questions

What is the first crack in coffee roasting?

The first crack is the initial audible popping sound beans make during roasting, caused by moisture rapidly escaping and the bean structure expanding. It usually occurs around 385°F–400°F (196°C–204°C) and signals the beginning of light roast territory. Roasting stopped just before or at the end of this crack results in a light or cinnamon roast.

What is the second crack in coffee roasting?

The second crack is a softer, more rapid series of popping or cracking sounds that happen when the cellulose structure of the bean breaks down further, usually around 435°F–445°F (224°C–229°C). Roasting into or beyond this crack leads to medium-dark, dark, and very dark roasts like full city, French, and Italian. It marks a dramatic shift in flavour development.

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

City roast is stopped just before the second crack begins, resulting in a medium-brown bean with moderate acidity and balanced flavour. Full city roast is taken just 10–30 seconds into the second crack, producing a slightly darker bean with fuller body, more caramelisation, and slightly less acidity but still with noticeable origin character.

Why do some roasts look oily and others don’t?

Surface oils appear when beans are roasted dark enough for internal pressure to push oils from inside the bean to the surface. Oils are rarely seen on light or medium roasts but become visible starting around full city and definitely present on French and Italian roasts. Oily beans are not necessarily fresher—they’re just more heavily roasted.

Is Italian roast actually used in Italy?

No. Despite the name, Italian roast—a very dark, nearly black bean with heavy oil and strong carbonised flavours—is not commonly used in Italy. The term is a historical holdover and is more associated with traditional dark espresso roasts elsewhere, especially in older North American or European cafés.

Recommended FrontStreet Coffee Beans for Exploring Roast Levels

FrontStreet Coffee’s Ethiopia Yirgacheffe Gedeb showcases bright citrus, berry, and floral notes typical of a well-executed light roast, making it ideal for exploring origin character. Their Ethiopia Humbera highlights intense tropical fruit and juice-like sweetness—flavours that shine at a light to medium roast. For a juicy, acidic Kenyan profile, the Kenya Little Tomato offers sharp red fruit and vinegar-like brightness when kept in the medium range. Freshly roasted within 5 days · Orders placed before 17:00 ship the same day · Next-day delivery across most of Guangdong Province.