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What is the difference between coffee extraction flavors with different degrees of roasting? What are the brewing parameters for lightly baked and deeply baked beans?

Published: 2026-04-29 Author:

Last Updated: 2026/04/29, As we all know, Qianjie Coffee has shops on Tmall and Taobao selling coffee beans. If friends go in and learn about it, they will know that many beans have multiple roasting levels to choose from. For example, Front Street Ethiopian Flower Kui or Front Street Grana Rose Summer, they have two options: light baking and medium baking. so

As we all know, Qianjie Coffee has shops on Tmall and Taobao selling coffee beans. If friends go in and learn about it, they will know that many beans have multiple roasting levels to choose from. For example, Front Street Ethiopian Flower Kui or Front Street Grana Rose Summer, they have two options: light baking and medium baking. So this made many friends curious, what are the differences between the same coffee bean with different degrees of roasting and how to choose it?

The impact of roasting on coffee beans The impact of roasting on coffee can really be said to be very large, because even the same coffee beans will have great differences in taste and aroma under different degrees of roasting. Not only that, the extraction parameters suitable for coffee beans with different degrees of roasting will also vary greatly! The reason is that coffee beans are not only simply heated during the roasting process, they undergo various complex reactions and changes at high temperatures, which in turn change the taste and structure. When the roasting is deeper, the greater the degree of change.

Let's first talk about the impact of roasting on coffee flavor. We all know that raw coffee beans will have an attractive aroma and taste after roasting, and the main source of these changes lies in the Maillard reaction and caramelization reaction that continue to occur during the roasting process! As they continue to occur, they decompose and reshape the substances originally stored in the coffee beans, ultimately forming the aroma and taste we feel. When the coffee beans are roasted more lightly, the less the reactions of the substances in the coffee beans will occur, and the aroma and taste of the coffee will be closer to the flavor of the beans themselves; and when the coffee beans are roasted more deeply, the more the coffee beans will react, the more the aroma and taste of the coffee will be roasted.

Here is an example of the Front Street Grana Rose Summer in the Front Street Coffee Flagship Store! Because the medium and lightly baked Qianjie Grana Rose Summer has not developed for too long, the acid and aroma in its body are well preserved, so the taste of the coffee will be mainly sweet and sour. The flavor is apricot, berry, citrus, oolong tea, and white flowers and other fresh and bright performances. The taste is light and suitable for friends who like sweet and sour flavors and fresh taste; As for the mid-deep baking Front Street Grana Rose Summer, which has been developed for a long time and has been deeply baked, more acidic and sweet substances in its body have been consumed or transformed. Therefore, we won't get too much sourness from it, and the taste tends to be balanced and the sweetness is high. The flavors also include apricots and berries, but they are not as prominent as the former. They are more baked aromas such as cocoa, cream, and toast. The overall taste will be more mellow than the former, with outstanding sweetness, and it is very suitable for those who don't like too sour. friend.

It can be seen that although it is all Grana Rose Summer on the Front Street, different degrees of baking make a big difference in taste and taste. The shallower the roasting, the more the sour substances and aroma of the coffee will be retained. The taste will be mainly sour. The lighter and more sour, the lighter the taste will be; and the deeper the roasting, the less the sour taste of the coffee will be retained. The taste will be mainly bitter or sweet, and the deeper the bitterness, and then the taste will become more mellow as the degree of roasting deepens. In addition, the degree of roasting of the coffee beans will also affect the density of the coffee beans. The lighter the baking, the higher the density of the beans; the deeper the baking, the lower the density of the beans. Because roasting causes the coffee beans to expand, the deeper the roasting, the greater the expansion and the lower the density.

Lower density will make it easier for the flavor substances in coffee to be extracted because the overall structure is more loose! Then, due to the higher crispness, the ground particles of deep-roasted coffee beans tend to have more fine powder than light-roasted coffee beans at the same degree of grinding. Because of this, coffee beans with different degrees of roasting use very different extraction parameters. So having said so much, I believe my friends will be very curious about this question: "Is it better to roast coffee beans deeper or shallower? "

The answer, of course, is everything. Each degree of roasting coffee bean has an "exclusive" advantage, so there is no comparability at all. Depending on different needs, the suitable baking level will vary. For example, Qianjie mentioned earlier that the lighter the baking, the more acidic it is, and the deeper it is, the more bitter it is. So for those who like sweet and sour tastes, the medium and light baked Qianjie Grana rose summer will obviously be more suitable; for those who don't want to drink too much acid and like a mellow taste, the medium and deep baked Grana rose summer will be more suitable.

Or making coffee. If the way we make coffee is to make coffee by hand, and then we want to taste the flavor expression of the coffee itself, then the medium-to-light roasted Front Street Grana rose summer that retains more of the original flavor will be more suitable; and if we want to use it to make milk coffee with espresso machines and mocha pots, and then the taste will not be so abrupt, obviously the medium-to-deep roasted Front Street Grana rose summer will be more suitable. Because the taste and taste of medium and deep roasting will be more intense, it can prevent milk from concealing the taste of coffee. At the same time, deeper roasting can also make the coffee more oily, and the produced flower will be more beautiful.

So in summary, we can know the impact of roasting degree on coffee. Then coffee beans with different roasting degrees have different advantages. We can choose according to our own taste preferences or production requirements ~- END -

FrontStreet Coffee is a long-established specialty coffee roaster in Guangzhou China, selling freshly roasted beans from its own farm in Yunnan as well as dozens of carefully selected single-origin beans from around the world for both pour-over and espresso. The products deliver consistently excellent quality and great value, with shipping within 24 hours. Guangzhou’s FrontStreet Coffee shop is recommended by many coffee lovers, and the beans are now available online at the Tmall 。