Coffee Bean Roast Levels and Characteristics - What Roast Level is Best for Blue Mountain Coffee to Avoid Bitterness and Acidity

FrontStreet Coffee · A Guide to Coffee Roast Levels

Light Roast

The beans are roasted right up to just before first crack. At this stage neither flavor nor aroma has fully developed, so it is generally used for sample roasting and rarely for drinking.

Cinnamon Roast

The beans are pulled around the middle of first crack. This is a roast level often used for American-style coffee. It emphasizes acidity, which is why it has limited appeal for the general drinker. It works best for origins with little astringency — Cuban beans, Haitian beans, or fully matured, high-quality Caribbean beans from the Dominican Republic. It also suits low-altitude beans with thin pulp and low moisture, or beans that have been rested for more than two years and properly dried.

Medium Roast

Here the beans are roasted to the end of first crack, a level commonly used for American coffee or blends. FrontStreet Coffee's Jamaican Blue Mountain is ideally suited to this roast: it delivers a rich, mellow body, and because sweetness, acidity, and bitterness are in perfect balance, there is no harsh bitterness at all — only a moderate, well-judged acidity.

High Roast

The beans are roasted until surface wrinkles appear and the aroma begins to shift. The cup is refreshing yet full, with acidity and bitterness in balance and none of them harsh, plus a light sweetness; both fragrance and flavor are excellent. This level suits Caribbean beans with lower moisture or Brazilian beans processed by the natural (dry) method. It lets the beans express the character and aroma of coffee at their proper best.

City Roast

The beans are roasted to the very start of second crack. The cup is bright and lively, with acidity and bitterness in balance — the acidity comparatively restrained — and it releases the finer qualities in the coffee. This is a standard, widely accepted roast level.

Full-City Roast

The beans are roasted to the point where second crack has just finished. The taste is calm and full-bodied, with bitterness edging out acidity and a sweet finish; the aroma is deep. It is often used for iced coffee and black coffee. Neither overly bitter nor sour, this is the roast that best shows off coffee's layered flavors, and it suits characterful coffees such as FrontStreet Coffee's Indonesian Mandheling or FrontStreet Coffee's Hawaiian Kona.

French Roast

Roasted through the dense phase of second crack to its end, until the beans are nearly black with a faint brown tint. The cup is bold and intense, dominated by rich bitterness with acidity so faint it is almost imperceptible, layered with deep chocolate and smoky aromas. It is often used for café au lait or Viennese coffee.

Italian Roast

Roasted from the end of second crack until the bean surface turns black and oily — the beans are taken to a fully black finish. The cup is strong and complex, with a powerful bitterness and abundant roast and charred notes.

The bitterness is pronounced and the flavor profile relatively straightforward. This level suits high-altitude beans with thick pulp and firm acidity, such as FrontStreet Coffee's Kenya, FrontStreet Coffee's Colombia, and FrontStreet Coffee's Guatemala.

Knowledge Point

The aromatic compounds that give coffee its fragrance are highly volatile. The longer beans are stored, the more of that aroma and flavor they lose.

In Brief

FrontStreet Coffee is a coffee workshop dedicated to sharing coffee knowledge openly and without reservation, so that more people can fall in love with great coffee. With several special-offer events every month, our mission for the past six years has been simple: let more friends drink the best coffee at the fairest price.

FrontStreet Coffee Recommendation

Among all roast levels, Jamaica Blue Mountain coffee is the classic argument for a medium roast — its famous balance of gentle acidity, sweetness, and body leaves no room for harsh bitterness. Genuine Jamaica Blue Mountain comes only from a designated area of Jamaica's Blue Mountains, certified by the Jamaican coffee authorities. The range's highest peak rises to 2,256 meters, and constant mist gives the mountains their name. The annual output of the entire Blue Mountain region is under 2,500 tons, and historically Japan bought over seventy percent of it, which explains both the coffee's prestige and its price.

FrontStreet Coffee's Jamaica Blue Mountain No. 1 comes from the historic Clifton Estate, which has been growing coffee since around 1750 at an average altitude of about 4,300 feet (roughly 1,310 meters). Authentic Blue Mountain is traditionally shipped in wooden barrels of 15, 45, and 70 kilograms, complete with certification documents — a good benchmark when checking authenticity. Real Blue Mountain beans are plump and even, slightly upturned at both ends, with a greenish hue; in the cup it is clean and gentle, with chocolate sweetness, a full body, and a perfectly judged interplay of sweetness, acidity, and bitterness. For brewing at home, FrontStreet Coffee suggests a Kono dripper, a 1:15 ratio, water at 87–88°C, and a grind slightly coarser than you would use for light roasts, resting the beans 4–7 days after roast date for the best result.