What Does an Iced Latte Tutorial Cover From Espresso to Milk Ratio?

An iced latte is built from three parts: espresso, milk, and ice. Milk and ice go into the cup first, then a double shot is pulled. A common shop standard is 20 grams of grounds yielding about 40 grams of liquid, with extraction held to roughly 26 to 32 seconds so the cup stays sweet rather than thin or burnt.

Bitterness and sourness usually trace back to extraction time. Under 20 seconds the shot tastes weak and sour, similar to a poorly pulled sour americano, while past 35 seconds it turns over-extracted and bitter. Leveling the grounds and tamping vertically keeps the puck even, so each iced latte stays consistent.

On a scorching summer day, many people want to shake off drowsiness with a cup of coffee, yet find Americano too bitter. That's when a sweet, smooth iced latte becomes the ideal choice. This article will walk you through, step by step, how to make a delicious iced latte at home—covering everything from espresso extraction parameters and coffee bean selection ideas to the ratio of milk to coffee, and even the small details that are easy to overlook. We'll also discuss whether an iced latte tastes bitter or sour, and how to choose between it and an iced Americano. If you love floral and fruity notes, the article also recommends beans suitable for making iced lattes, such as Front Street Coffee's Strawberry Candy Espresso.

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When the weather gets hot, people tend to feel drowsy. Many friends want a cup of coffee to perk up, but find Americano too bitter to swallow. Today, Front Street Coffee will teach you how to make a sweet, mellow iced latte.

How do you make an iced latte?

Let's first break down the components of an iced latte: espresso, milk, and ice. Once you understand the ingredients, you can prepare it step by step in order. First, put ice cubes and milk into the cup, then extract the espresso.

The coffee machine used at Front Street Coffee's shop is equipped with a double portafilter basket. Each time, 20 grams of coffee grounds are weighed out, and the coffee-to-liquid ratio is calculated at 1:2, meaning 40 grams of coffee liquid is extracted within a reasonable time. The extraction time is related to the flow rate through the coffee bed, and a single extraction is usually controlled between 20 and 35 seconds. If it's under 20 seconds, the coffee tends to taste thin and weak; if it exceeds 35 seconds, it's prone to over-extraction, bringing out burnt bitterness. Therefore, the espresso produced by Front Street Coffee generally falls within the 26–32 second range.

Before extracting, wipe the portafilter basket clean, start the grinder to grind a double shot of coffee grounds, place it on an electronic scale, and adjust until it's exactly 20 grams. Then use a distribution tool to level the surface of the grounds, and a tamper to press down vertically, making the puck tight and even so the extraction is more stable.

Next, turn on the extraction switch and let water run for 1–2 seconds to wet the group head and rinse off any residual coffee grounds. Place an electronic scale under the cup that will catch the espresso, tare it to zero, and place it together with the cup under the group head. Gently lock in the portafilter and flip the extraction switch. When the scale shows the coffee liquid has reached 40 grams, stop the extraction immediately. Finally, slowly pour the espresso into the cup containing ice and milk.

Are there any tips to make an iced latte taste even better? Of course there are.

First: Choose suitable coffee beans for making espresso

The flavor of the coffee beans directly influences the taste direction of the iced latte. If you choose very dark-roasted beans, there are more bitter compounds, and the resulting latte tends to have a burnt and bitter taste; while light-roasted beans are harder in texture and prone to under-extraction, making the latte both sour and weak, with a poor mouthfeel.

For beginners, it's recommended to use medium-dark roasted espresso blend beans for making lattes, so the iced latte will present rich aromas of nuts, chocolate, and toasted bread. Front Street Classic Espresso and Front Street Commercial Blend Coffee are recommended; their thick, dense crema not only enhances the body of the iced latte but also complements the sweetness of the milk.

If you prefer your coffee less bitter, you can choose Front Street Coffee's Strawberry Candy Espresso. This espresso recipe is specially designed for those who enjoy floral and fruity aromas, blending three major producing regions—Costa Rica, Colombia, and Ethiopia. It carries aromas of roses, citrus, grapes, and dried blueberries, and when made into an Americano, it has a sweet flavor reminiscent of fruit gummy candy.

Second: Master a reasonable milk-to-coffee ratio

After choosing the coffee beans, it's time to pick the milk. To make a delicious iced latte, Front Street Coffee suggests prioritizing fresh milk with a higher protein content. Next, it's about getting the milk and coffee liquid into a suitable ratio range.

Front Street Coffee's iced latte uses Front Street Coffee's Front Street Classic Blend coffee beans paired with Bright Fresh Pasture milk, in a ratio of 40 grams of espresso liquid, 150 milliliters of fresh milk, and 75 grams of ice. This ratio is for your reference—it's not the golden ratio for lattes, but rather the parameters Front Street Coffee arrived at after repeatedly adjusting with the above materials, mainly based on real tasting feedback.

Third point: Pay attention to operational details

The process of making an iced latte looks simple—add ice, pour milk, pour coffee—but in practice there are still some small details to note. The most critical is the extraction of the espresso; whether a latte tastes good depends on whether the espresso extraction meets the standard. Common issues like channeling and incorrect extraction time will all affect the taste of the iced latte. The process of making an iced latte should also be quick—here, "quick" means keeping the time the ice and milk spend in the cup as short as possible, and pouring the extracted espresso into the cup right away.

Master these details, and Front Street Coffee believes you can easily make a delicious iced latte at home too.

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