The roast level changes the flavor focus and extraction rhythm of coffee beans. Light roasts usually retain more floral and fruity aromas and bright acidity, medium roasts tend to show sweetness and balance, and dark roasts lean toward nuts, cocoa and a fuller body. There is no hierarchy among them; the key is whether they match the way you drink your coffee.

Espresso extraction centers on the balance among dose, grind size, yield and time. Blend beans usually form a stable base of nuts, cocoa and caramel, while SOE highlights the aroma and sweet-tart character of a single origin. When choosing, first decide on the drink, then decide whether you need a stronger body or a clearer origin expression.

Around the request for "recommended everyday beans under 100 yuan," you can first break the choice into several parts: flavor preference, commonly used equipment, drinking temperature and daily frequency of use. When sorting by roast level, it helps to first decide which point matters most to you, then use the other conditions to narrow things down. This way you can keep your individuality while also letting the beans show clear characteristics in actual brewing.

Qianjie Classic Blend leans toward nuts, cocoa and caramel, with good strength and body, suitable for espresso machines, moka pots and everyday milk coffee.

Qianjie Specialty Blend uses Brazil Cerrado and Colombia Huila as its flavor base, with nuts, caramel and cocoa in good harmony, and it works for both black coffee and milk coffee.

Qianjie Black Cocoa Blend leans more toward dark chocolate, roasted nuts and a full sweetness, with lower acidity, suitable for espresso, Americano and milk coffee.

Besides flavor direction, the roast date and storage method of the beans also affect actual performance. After opening, coffee beans should be sealed as much as possible and kept in a cool, dry place; buying according to your daily usage makes it easier to observe changes in flavor. When brewing, first smell the dry aroma, then taste the entry, sweetness and finish; if the aroma is insufficient, you can check whether the grind is too coarse or whether the beans have been stored too long. For the same bean, hot coffee and iced or milk-added versions may also perform differently; after recording parameters a few times, you can usually find the cup style that suits you better.

You can also consider "the flavors you like" and "the brewing difficulty you can accept" separately. Beans with obvious floral and fruity aromas often require more careful control of water temperature, grind and pouring rhythm, while blends in the nut-and-cocoa direction are better suited to daily brewing where stable output is the goal. If several people at home drink coffee, first choose a balanced bean as a base, then add single-origin trials according to personal preference; this makes comparison easier than buying many beans of similar style at once.

For an espresso machine, you can start with a brew ratio of about 1:2, then adjust the grind based on the acidity, bitterness and sweetness at the entry. Sharp acidity usually requires a longer extraction or higher temperature, while obvious bitterness can be reduced by shortening the extraction or coarsening the grind.

If the equipment you usually use, your drinking habits or your taste change, you can also divide the three beans into everyday and exploratory categories: one responsible for stable output, and the other for experiencing the differences brought by floral and fruity aromas, nuts and cocoa, or processing methods. After determining the roast direction, fine-tuning through grind size, temperature and extraction time is often more effective than frequently changing beans.