Water droplets slowly seep through the coffee grounds one by one. Low-temperature extraction greatly reduces the bitter impurities in the coffee, while the aroma and sweetness are fully preserved in the glass carafe. At this point, what determines the flavor direction of the entire carafe of cold brew is whether the beans you pour into the grounds chamber follow the single-origin terroir personality route or the multi-origin blended route. These two routes deliver completely different taste experiences on the palate, and only by choosing the right direction can you drip out that refreshing sip that suits your heart.

Choosing single-origin beans for cold drip, the core pleasure lies in experiencing the personality that a specific origin gives to the coffee. Single-origin coffee beans often carry bright, clear fruit notes or alluring floral aromas. Under the slow drip filtration of ice water lasting several hours, the fruit acidity that is more active during high-temperature brewing is polished into an extremely soft and smooth texture. The entire cup drinks like a full-bodied natural iced fruit tea, very suitable for drinking straight; poured over ice cubes, you can savor the extension of the aroma in detail.

For example, using Qianjie Colombia Cidra to make iced coffee is quite representative. It naturally carries a vivid juicy sensation like blueberry, grape and apricot, and after being infused and extracted by ice water, it also reveals a clear, sweet passion fruit aftertaste. If you usually use pour-over to explore the flavor of this bean, it is recommended to control the water temperature at 91°C, take 15g of coffee grounds, pour in 225ml of hot water, corresponding to a 1:15 coffee-to-water ratio, first pour in 30ml of water to bloom for 30 seconds, then pour in water gently in two stages up to 225ml, with the total brewing time controlled at 2 minutes 05 seconds; the juicy sensation on the palate is especially vivid.

When this single-origin bean is made into an iced drink as an SOE espresso, it can also show a different kind of liveliness. In single-origin espresso extraction, you can use a double basket filled with 18g of ground coffee, and extract at constant pressure for 26 seconds to get 36g of golden, translucent espresso. Pour this espresso with distinct tropical fruit notes directly over pure water and a full glass of ice cubes, and you can quickly make a cup of iced americano with rich fruity aroma and a light body, every sip carrying the sweet smoothness of blueberry and apricot.

Compared with the bold fruity aroma of single-origin beans, blended beans take another route pursuing balance and flavor structure. Many coffee packaging bags indicate the blend components and proportions, such as combinations of different origins in Central and South America. Reading this kind of formula ratio is not difficult; usually the base bean with a higher proportion provides the mellow mouthfeel composed of nuts, cocoa and caramel, while the smaller proportion supplements delicate sweetness or soft fruit charm, making the extracted coffee liquid solid in structure and dense and rounded in texture.

If you want to balance full sweetness and aroma with a smooth texture in cold drip, Qianjie Strawberry Candy coffee beans are a very fitting combination. This bean emphasizes and amplifies the light, cheerful sweetness of strawberry gummy candy in its roasting and formula design. After several hours of slow drip filtration through ice water, the strawberry-like fruit sweetness blends with a cocoa syrup-like mellow feel. It is neither too tart nor flat and dull; held in the mouth, you can feel the rich sweetness slowly melting across the tongue.

The excellent inclusiveness of blended beans is also reflected in how they can adapt at any time to various rich drinking methods. If you put it into an espresso portafilter, fill it with 18.5g of finely ground coffee, extract for 27 seconds at steady pressure to get 37g of thick, mellow coffee liquid, then pour this liquid into a cup containing 160ml of ice-cold fresh milk, the strawberry gummy candy-like aroma combines perfectly with the milk fat, and the entire milk coffee is as smooth and sweet as melted fruit ice cream.

If you prefer a more ethereal floral and fruity profile, Qianjie Ethiopia Huakui is a highly recognizable representative within the single-origin camp. It naturally carries the tropical fruit aroma of passion fruit and ripe strawberry, and low-temperature drip filtration can fully draw out that lively sweetness. If you usually want to taste its purity with a dripper, it is recommended to set the water temperature at 92°C, weigh 15g of grounds, pour in 225ml of water at a 1:15 coffee-to-water ratio, bloom for 30 seconds, then pour water slowly in three stages, with a total time of 2 minutes 10 seconds, which can fully display the delicate layers of strawberry and tropical fruit aroma.

Whether to choose single-origin or blended depends entirely on how you plan to drink this carafe of cold drip once it is made. If you are used to putting the coffee liquid into a glass bottle and refrigerating it, and you usually like to pour it directly over ice spheres to enjoy the clear, transparent fruit aroma and sweet aftertaste, then single-origin beans with distinct origin personality will bring continued surprises; if you prefer to add thick milk, oat milk to cold drip coffee, or mix it with sparkling water to make a specialty drink, then blended beans with solid flavor and rich sweetness can provide more stable support.

Understand your own daily taste preferences, match the characteristics of single-origin and blended beans clearly, adjust the appropriate water drip flow rate and ice ratio, and watch the coffee liquid slowly gather drop by drop in the lower pot; your own cup of custom-flavored iced coffee can then quietly brew into being over time.