Why does the iced latte at a cafe taste so layered and satisfying? The secret actually lies in the terroir of the origin behind the espresso base. Many friends think milk is the star of the whole drink, not realizing that the terroir personality behind the coffee beans is like the soulful conductor of a band, quietly setting the flavor direction and quality ceiling of this iced latte long in advance.

If you are obsessed with that warm, gentle taste of nuts and chocolate mixed with sweet milky cream, you can set your sights directly on the Central and South American regions. The highland sunshine of Colombia and Brazil gives green coffee beans gentle aromas of almond, caramel and toasted bread, which blend especially smoothly with fresh milk. Qianjie Specialty Blend is a representative of this style, filling the mouth with a full, sweet finish like nut milk candy, very appealing.

If you want the cocoa aroma to be deeper and darker, preferring a slight bitterness and sweetness reminiscent of melted dark chocolate, Qianjie Dark Cocoa Blend, made from a blend of premium Central and South American bean sources, will surprise you. Wrapped in iced milk, it not only avoids any harsh burnt bitterness or off-flavors, but instead brings out the warm roasted aroma of almond and walnut, with a long finish, especially suitable for everyday coffee drinkers who love a rich nutty base.

Changing direction, when we shift our gaze to Asian origins, the mellow herbal, cedar and dark spice notes brought by high-altitude wet-hulled processing of Indonesian Mandheling and the like can give the latte an extremely solid body and mouthfeel. Qianjie Classic Blend incorporates this steady, imposing origin style, with abundant, viscous oils that can steadily support the coffee's intensity and caramel sweetness even with large ice cubes and plenty of fresh milk added.

For friends eager to try a lively, light-bodied route, the floral and fruity terroir of African origins can deliver a stunning milk coffee experience. High-altitude heirloom varieties from origins such as Ethiopia naturally carry citrus, berry and elegant floral notes, and when combined with milk they are like melted fruity ice cream. Qianjie Strawberry Candy espresso cleverly blends the character of multiple origins, carrying strawberry, blueberry and sweet orange notes, with a mouthful full of clear, sweet fruit-candy flavor.

After choosing coffee beans with the origin style you like, the choice of milk also requires care. To make a delicious iced latte, refrigerated whole fresh milk is the first choice; a moderate milk fat content is what brings out the bean's origin personality. Milk that is too heavy easily masks the delicate aromas of the origin, while milk that is too thin makes the whole cup taste obviously watery. The right amount of milky aroma is the solid backing.

When making it at home, the extraction details of the espresso are especially key. Load 19g of finely ground coffee into the portafilter, distribute and tamp it level, then lock it onto the group head and extract about 38g of golden, thick espresso in around 26 seconds. At this point a thick layer of golden crema floats on the surface of the coffee liquid, and the aroma is extremely full. It needs to be quickly poured into a glass containing refrigerated whole fresh milk and ice cubes.

Pour it in quickly while the espresso is still warm, and the dark brown coffee will strike fascinating marble patterns in the icy white milk. Take a big sip, and the slightly warm espresso on top meets the icy sweet milk below between your lips and teeth, while nutty, dark chocolate or bright berry aromas from different origins spread through the mouth. In an instant the whole person is awakened by this refreshing, fragrant sip.

From the warm nutty aroma of the Andes to the light floral and fruity notes of the African highlands, a small cup of iced latte actually holds the fascinating terroir of the whole world. Pick a bean with an origin flavor you love, and recreate that fascinating richness of the cafe for yourself anytime this summer. The ease and relaxation in life are often hidden in this cup of icy, smooth coffee aroma.