Push open the glass door of a coffee shop on a hot summer day, order an iced latte, and take a big gulp: you get both a rich nutty aroma and the sweet, silky smoothness of fresh milk. Many friends go home and try to make it themselves, only to end up with an iced latte that is either thin and watery or bitter and scorched. Actually, the key to recreating that captivating cafe flavor lies in understanding two core metrics: espresso extraction yield and strength.

Strength determines whether the whole cup tastes rich or watery, while extraction yield determines whether the flavors in the coffee grounds have been properly extracted. Because an iced latte contains a large amount of ice and cold milk, the coffee liquid gets heavily diluted the moment it is poured in, so the base espresso must maintain ample strength, and the extraction yield must stay in a palatable range, so the milk coffee does not taste thin or rough.

Controlling the state of espresso actually requires care. For home brewing, it is recommended to use 18g of coffee grounds to extract 36g of espresso liquid, with extraction time stabilized at around 26 seconds and water temperature kept at around 92°C. Under these classic extraction parameters, the quality aromatic substances in the coffee beans can be fully released, and the entire shot of espresso has dense, golden crema that stays firm enough when combined with milk.

If the iced latte you usually make tastes a bit weak, it is often because the grind is too coarse, causing water to flow through too quickly, resulting in strength that is too low and under-extraction. If the finish tastes astringent and your throat feels dry, it is usually because the grind is too fine, blocking the water flow and causing over-extraction. Do not panic when this happens; you just need to adjust the grind size by half a step around the target time to bring your coffee beans to a smooth, palatable state.

Besides fine-tuning parameters, when choosing beans you should also consider whether the beans are better suited for strong or light drinking. Friends who prefer a rich nutty flavor can choose Qianjie Specialty Blend or Qianjie Dark Cocoa Blend. Because the blend formula uses quality Brazilian coffee beans, once made into an iced latte it has extremely clear aromas of almond, candied walnut and dark chocolate; even if the ice melts slightly, the aroma remains very solid.

If you are especially fond of that deep, mellow, retro milk coffee texture found in cafes, Qianjie Classic Blend will be a surprising choice. This bean blend includes a tiny amount of quality Robusta beans, which can extract very rich golden crema, instantly maximizing thickness and body. When the espresso is poured into fresh milk, caramel aroma and creamy sweetness blend together, making it especially intense and satisfying to drink.

If you are used to drinking clean, sweet fruity flavors, you can also try a light-medium roast style. For example, Qianjie Strawberry Candy Espresso has a distinctive character all its own. It is blended from three single-origin beans from different regions and carries an elegant rose fragrance. Once made into an iced latte, you can clearly taste the sweetness of dried blueberries, sweet orange and fruit candy, making the whole iced coffee drink like a strawberry-flavored milkshake.

Good beans paired with precise extraction still require attention to rhythm when assembling an iced latte. It is recommended to choose refrigerated whole milk. First put an appropriate amount of ice cubes in the cup and pour in the fresh milk, then quickly pour the extracted espresso over the top layer of milk. Only swift movement can preserve the thick crema on the surface of the espresso, forming a beautiful layered gradient, while also preventing the ice from melting too early and over-diluting the coffee.

Once you find the balance point between extraction yield and strength, and then choose a bag of beans suited to your taste preferences, the delicious secret of an iced latte is actually right at hand. Whether for a morning pick-me-up or an afternoon break, extract a cup of fragrant, smooth iced coffee, watch the brown coffee liquid slowly spread through the snow-white iced milk, and every sip is full of comfort. Anytime, you can enjoy the refreshing experience of a specialty cafe.