Introduction:Want to enjoy a cup of coffee that’s not acidic and has a rich, smooth taste but don’t know where to start? In fact, the balance between acidity and bitterness in coffee is closely related to the degree of roasting. This article takes an in-depth look at the key turning point in the roasting process — the “first crack” — explaining how different roast levels affect flavor profiles. For those who dislike acidic tastes, we also recommend two medium-dark roasted coffee beans suitable for both pour over and espresso brewing, helping you easily find your perfect match.
Many coffee enthusiasts often face a common dilemma when selecting beans: how to find a bean that’s low in acidity and has a rounded mouthfeel? In truth, a large part of a coffee’s acidity and bitterness is determined by its roast level. From the moment the “first crack” sound is heard during roasting, the direction of the flavor is largely set: the earlier it’s roasted, the more pronounced the acidity; the later it’s roasted, the stronger the bitterness.
The industry typically divides roast levels into eight grades, but in actual purchasing, most people only encounter three main categories: light roast, medium roast, and dark roast. For those wishing to avoid acidity and pursue a rich taste, medium-dark roast and dark roast are usually the more suitable choices.
A common question is: can you recommend a medium-dark roasted coffee bean with as little acidity as possible? The answer lies in mastering the roast curve. During roasting, the “first crack” is a critical turning point. When the coffee beans have absorbed enough heat, internal moisture and volatile compounds begin to release intensely, creating a series of cracking sounds. If the beans are released just as the “first crack” begins, the coffee usually has noticeable fruity acidity and a fresh feel; if you wait a bit longer, until the cracking becomes denser, the acidity will carry a touch of sweetness, resulting in a richer flavor profile; but if you continue roasting until the cracking completely fades, the beans often end up with only intense bitterness, which becomes even more pronounced the later they’re roasted.
According to industry standards, although roast levels can be subdivided into eight tiers, they are usually simplified into three main categories — light, medium, and dark — for easier consumer understanding and selection. For users who dislike sour or astringent flavors, baristas often recommend choosing medium-dark or dark roasted beans. One reason is that the deeper the roast, the more easily the oils on the surface of the beans are released, which is crucial for the flow and flavor extraction when using an espresso machine or moka pot. Moreover, when medium-dark roasting techniques and brewing methods are properly executed, the coffee often showcases rich caramel, dark chocolate, and nutty aromas — starting off bitter and then finishing with a sweet aftertaste, offering a smooth and full-bodied mouthfeel, which is why it’s so widely loved.
For those who own an espresso machine or moka pot at home, it’s recommended to prioritize medium-dark roasted beans, such as a blend dominated by black chocolate and nut notes. These beans usually have a creamy, silky texture, extremely low acidity, and rich crema without smoky or off-flavors. Whether making Americano, latte, or mocha, they deliver stable and pleasing flavors — especially suitable for beginners or everyday drinking.
If you prefer using filter-style brewing methods such as pour over, French press, or siphon, then a medium-dark roasted bean from Indonesia, which has undergone multiple rounds of strict screening, is a great choice. These high-altitude-grown beans are handpicked and mechanically sorted to ensure whole bean integrity and consistent quality. Then, through medium-dark roasting, their internal complex aromas — such as caramel, dark chocolate, pine, and licorice — are brought out. After brewing, the acidity is barely noticeable, and the taste is rich and layered, making it a daily favorite among many seasoned coffee enthusiasts.
The above content is compiled by CoffeeHunters, a coffee news website.
