Introduction:As one of the most popular specialty coffee drinks, the latte combines the perfect ratio of espresso and milk, making it a favorite choice for many coffee beginners. However, every step—from selecting the coffee beans and setting the espresso extraction parameters to frothing the milk—plays a crucial role. This article delves into how to choose the right espresso blend and fresh milk, and provides stable brewing and frothing techniques. Whether using professional equipment or making it at home, it can help you create a latte with rich crema and balanced flavor.

A latte is a specialty coffee made with a shot of espresso and steamed milk. Though it may seem simple, it demands high-quality ingredients and precise techniques. From bean selection and extraction, to frothing, pouring, and latte art, each step affects the final taste. Mastering the correct steps and parameters allows even beginners to reliably replicate café-quality lattes at home.

Espresso blends are ideal for lattes. Compared to single-origin beans, blends combine flavors from multiple regions, typically roasted to medium-dark or dark levels. They offer not only greater stability but also produce fine and rich coffee crema, which is essential for integrating milk flavors in a latte. Most espresso blends are designed for commercial use, offering great value and suitability for everyday home use.

If you want richer crema and a bolder taste, consider blends that include a small amount of Robusta, such as those combining Brazil, Mandheling, and a touch of Robusta. These beans are usually medium-dark roasted, delivering pronounced caramel, toasted bread, and buttery notes. The crema is fine and the extraction performance is stable, making them ideal for beginners aiming for consistently good lattes.

If you prefer a refreshing, nutty profile, you might opt for a blend of washed Colombian beans and semi-washed Brazilian beans. Its flavor is dominated by nuts, dark chocolate, and caramel, resulting in a smooth mouthfeel. When paired with milk, it froths well and is even suitable for creating Dirty coffees with distinct layering, sometimes forming an attractive deep-brown “tiger stripe” pattern on the surface.

It’s important to note that freshly roasted beans release a large amount of carbon dioxide, which can lead to rough crema and poor taste during extraction. It’s recommended to let newly roasted beans rest in a cool, dry place for 7 to 10 daysto allow the beans to “degas,” and then use them within 45 daysfor optimal flavor.

Espresso extraction parameters are the soul of a latte. It’s generally recommended to use a double basket, with about 18 to 20 gramsof coffee grounds, and an extraction ratio of 1:2(i.e., extracting 40 gramsof espresso). The extraction time should be controlled between 20 to 35 seconds—too short can result in weak flavor, while too long may lead to over-extraction and bitter, burnt notes. In practice, most cafés aim for a stable extraction time of around 28 to 30 seconds.

Before extraction, preheat the coffee cup and milk pitcher, and ensure the portafilter basket is dry. Distribute the ground coffee evenly, then tamp it firmly with a tamper to form a compact puck that ensures consistent extraction. Before starting extraction, run a 1 to 2 secondblank shot to rinse the group head and remove any residual coffee grounds. During extraction, lock the portafilter in place and observe the flow rate and volume of the espresso. When you reach about 40 grams of espresso and the time is around 30 seconds, you’ll have a stable and well-balanced shot of espresso.

Next comes the critical technique of steaming milk. It’s recommended to use around 240 millilitersof whole fresh milk (adjust based on cup size, e.g., for a 300 ml serving), tilt the milk pitcher slightly, and insert the steam wand about 1 centimeterbelow the milk surface. First, purge the steam wand to expel condensation, then begin steaming.

The steaming process has two stages: first is the “foaming stage,” where the steam wand is close to the milk surface to create fine microfoam. You’ll hear a tearing paper-like hissing sound during this phase, which determines the foam thickness. Next is the “stretching or texturing stage,” where you raise the pitcher to submerge the wand deeper into the milk, using circular motion to uniformly aerate the milk. This stage defines the milk’s texture. Ideally, the latte foam should be about 1 centimeterthick, smooth on the surface with no large bubbles, and have some fluidity.

Finally, it’s time to pour and latte art. Slowly pour the steamed milk into the espresso, starting from a slightly higher position to integrate the milk through impact. When the cup is about 70% full, lower the pitcher to reduce impact and let the foam rise naturally. By wrist movement, you can create simple patterns like hearts or leaf designs, completing a professional-looking latte.

As for iced lattes, the process is simpler and doesn’t require a steam wand. Just pre-chill your cup, add 100 grams of ice cubesand 180 grams of milk, then pour in 30 to 40 gramsof espresso. It’s best to pour the espresso immediately after extraction and gently stir to combine for a cool, smooth coffee experience.

Common online suggestions for iced latte ratios are coffee:milk = 1:4 to 1:8. The actual ratio can be adjusted based on personal taste and the characteristics of the coffee beans. For instance, dark roast beans with intense flavors can maintain balance with a 1:6 (slightly higher milk ratio); whereas lighter roasts are better with a 1:4 to 1:5ratio to avoid too much milk masking the beans’ fruity acidity and floral notes.

The above content is compiled by CoffeeHunters, a coffee news website.