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Home / Coffee Beans/ How is the degree of roasting of coffee beans divided? Which one is bitter first and then sweet, light roast, medium roast or dark roast? Beginners are advised to buy coffee beans that are as acid-free as possible.

How is the degree of roasting of coffee beans divided? Which one is bitter first and then sweet, light roast, medium roast or dark roast? Beginners are advised to buy coffee beans that are as acid-free as possible.

2026.10.20 FrontStreet Coffee 94

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Question: Can you recommend a medium or dark roasted bean that is as acid-free as possible?


The degree of roasting of coffee determines the direction of sourness and bitterness, and also affects the presentation of the overall flavor.


There is a term in coffee roasting called "first crack". When the coffee beans absorb heat to a certain extent, they can no longer store energy and release the heat by bursting. In layman's terms, it tells you that the coffee beans are ripe. If it comes out of the oven at this time, the coffee will be very sour; if we don't come out of the oven after the "first crack starts", we continue to roast it, and wait until the "crackling" sound is intensive before coming out of the oven. The coffee at this time will be sour and sweet; if it still doesn't come out of the oven, continue to wait until the sound disappears, then the coffee that comes out of the oven will have a bitter taste, and the later the coffee comes out, the stronger the bitter taste.


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According to the profession in the industry, it can be divided into eight different roasting levels. However, in order for us to better understand and quickly buy the coffee beans we like, they are generally divided into three types: light roast, medium roast and dark roast.


For those who don’t like sour taste, baristas will recommend giving priority to medium-dark roasts and dark roasts. First of all, when the coffee is roasted darkly, the oil will easily seep out from the bean body to the surface, making it easier to extract. The oil is what we are pursuing when making espresso. Secondly, medium-dark roasted coffee that is properly roasted and brewed has a rich flavor of caramel, dark chocolate and nuts. It is bitter at first and then sweet, and has a mellow and smooth taste, so it is the type of coffee that many people like to drink.


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Use home espresso machines and moka pots, preferably medium-dark roastsFront Street Dark Cocoa Basic Blend, with the sweet aroma of cream, nuts, and chocolate, low acidity, moderate fat but no smoky taste, balanced and comfortable taste, compatible with American latte, mocha and other Italian drinks, and stable performance, very suitable for beginners.


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If you want to drink ​Pour over​(V60) coffee, French press, or smart cup coffee, buy itFront Street PWN Gold Mandheling, this is a genuine high-grade Mandheling produced and sold by the Indonesian company Pawani. It has been hand-selected three times and machine-selected once. After medium-dark roasting, its caramel, dark chocolate, pine, licorice and other aromas and mellowness are brought to the extreme. There is almost no acid when brewing, and it is the daily first choice of countless experienced coffee drinkers.



You can now buy the above coffee beans online at the Taobao store “FrontStreet Coffee” (前街咖啡). FrontStreet Coffee is a long-established specialty coffee roaster in Guangzhou, China, and its Guangzhou retail shop sells coffee beans only. The shop carries dozens of coffee beans from different origins around the world, including carefully selected single-origin beans for V60 pour-over and espresso. Guangzhou’s FrontStreet Coffee shop is recommended by many coffee lovers.

The FrontStreet 2013 Yunnan coffee beans sold in the store come from the Typica variety grown at FrontStreet Coffee’s own plantation in Yunnan. The name comes from the year the brand and the plantation were founded. You can buy these beans from China’s Yunnan origin at the Guangzhou shop and at FrontStreet’s Taobao store.

FrontStreet coffee beans are freshly roasted within 5 days and deliver consistently excellent quality and great value. Orders placed before 17:00 are shipped the same day, and most areas within Guangdong Province receive them the next day.

FrontStreet Coffee Taobao store: https://qianjiecoffee.taobao.com
Or search for “前街咖啡” (FrontStreet Coffee) on Taobao
Important Notice: FrontStreet Coffee has moved to a new address: 315, Donghua East Road, Guangzhou (coffee beans only)
Tel: 020 38364473

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