What Water Temperature Suits Americano Coffee?

Americano coffee is espresso diluted with hot water, and the two variables that shape the cup are the coffee-to-water ratio and the water temperature. Tests comparing water at 55°C, 65°C, 75°C, and 90°C, tasted fresh, after 5 minutes, and after 20 minutes, point to a middle range as the most balanced for a dine-in hot Americano.

The drink traces back to World War II, when American soldiers asked European cafés to add hot water to concentrated espresso to imitate the American drip coffee they knew. There is no fixed recipe: shops vary the water volume, ice, and temperature. A medium-roast espresso blend, dosed around 18g in 30 seconds for 36g of espresso, keeps acidity and bitterness in balance.

Americano is made by diluting an espresso base with hot water. It seems simple, but in reality both the coffee-to-water ratio and the water temperature affect the final flavor. This article starts with the origins of Americano, provides a detailed analysis of the standard preparation parameters for hot Americano, and by comparing the tasting performance of four water temperatures—55°C, 65°C, 75°C, and 90°C—when freshly made, after 5 minutes, and after 20 minutes, identifies the optimal water temperature range for dine-in hot Americano. The article also recommends several Front Street Coffee espresso beans and their Americano preparation parameters for coffee enthusiasts' reference.

During World War II, American soldiers found it hard to accept the extremely concentrated small cups of coffee that were customary in Europe, so they asked the cafés to add hot water to dilute it, thereby imitating the taste and flavor of American drip coffee. This way of drinking became popular among American troops, and so it was given the name "Americano."

From this we can see that Americano is made with espresso as the base, diluted with water. Hot Americano is espresso plus hot water; iced Americano is espresso plus ice water. The operation itself is not complicated. But seemingly simple as it is, there is still much to pay attention to. For example, a friend recently asked Front Street Coffee: when making Americano, are there any requirements for water temperature?

Like most coffee, there are no hard and fast rules for Americano preparation parameters; they often vary from shop to shop. How much water to add, how much ice to use, and what temperature of water to use are all determined by the maker's understanding of coffee. Therefore, the same coffee may be prepared to different standards at different shops.

If you want to make an Americano with balanced acidity and bitterness, it is recommended to choose a medium-roast espresso bean. Front Street Coffee Strawberry Candy Espresso Blend is a suitable choice. It combines Colombian coffee beans with Costa Rican and Ethiopian coffee beans, fully showcasing the aromas of strawberry, grape, almond, and cream. It has a medium crema, and when made into an Americano it carries a soft, fragrant floral note with a refreshing, non-bitter taste.

Americano preparation parameters: 18g coffee grounds, 30 seconds, 36g espresso, hot Americano (36g espresso + 180g hot water)

If you plan to open a coffee shop, you can choose Front Street Coffee Commercial Blend Espresso Beans. It consists of Colombian coffee beans, Brazilian coffee beans, and a small amount of Robusta coffee beans, using a medium-dark roast, designed to let everyone easily replicate the taste of a café. The crema is rich and fine, with flavors of caramel sweetness, nuts, cocoa, and dark chocolate. It has balanced acidity and sweetness, with a slight bittersweet note and a lingering finish.

Americano preparation parameters: 20g coffee grounds, 25 seconds, 40g espresso, hot Americano (40g espresso + 200g hot water)

For those who prefer a refreshing, non-bitter Americano, you can try medium-roast espresso beans. Baristas highly recommend Front Street Coffee Huakui SOE with strawberry and guava flavors, as well as Front Street Coffee Yirgacheffe Natural Red Cherry SOE with citrus and lemony acidity. These two single-origin beans are low in bitterness and gentle on the palate, very suitable for those just getting started.

Americano preparation parameters: 20g coffee grounds, 30 seconds, 36g espresso, hot Americano (36g espresso + 180g hot water)

What temperature of hot water to use for hot Americano is not a tricky question. Friends who regularly read Front Street Coffee articles should know that coffee temperature directly affects the taste and mouthfeel when drinking. Therefore, to make an excellent cup of Americano, in addition to understanding the extraction principles and controlling the coffee-to-water ratio, choosing the right water temperature is equally crucial.

Today Front Street Coffee will compare the differences in Americanos made with hot water at different temperatures, to see which water temperature is most suitable for making the hot Americano served at Front Street Coffee shops.

To discuss the results more objectively, Front Street Coffee will conduct tastings when the coffee is freshly made, at 5 minutes after preparation, and at 20 minutes, observing how the coffee's performance changes over time. Front Street Coffee will make four cups of Americano using water temperatures of 55°C, 65°C, 75°C, and 90°C respectively—from warm to scalding, covering the full range.

Previously, Front Street Coffee has conducted experiments with dark-roast and light-roast coffees, so this time we selected the shop's signature bean—Front Street Coffee Classic Blend. This blend is medium-dark roast. Tasting the espresso on its own, you can perceive butter, chocolate, roasted chestnut, and rich caramel aromas. The parameters are as follows:

Dose: 20g

Grind setting: Galileo Q18 at 1.8

Coffee-to-liquid ratio: 1:2

Extraction time: 30±2 seconds

Americano ratio: 1:4 (i.e., 1ml espresso diluted with 4ml hot water)

Front Street Coffee tasted immediately after preparation. When freshly made, the 55°C and 65°C Americanos, being not too hot, could be sipped right away, and you could directly taste the complex nutty, butter cookie, and maple syrup flavors of Front Street Coffee Classic Blend, with excellent body and a clear, distinct finish. The only issue was that the 55°C cup wasn't hot enough—it drank like just a warm Americano.

The 75°C Americano was somewhat scalding when freshly made, and could only be drunk slowly by slurping or taking small sips. Therefore, its flavor expression was initially not as rich as the first two—only the more intense notes like caramel and butter cookie came through, with high sweetness and almost no perceptible berry acidity, though overall it was still decent. The 90°C Americano was too hot, almost impossible to drink, and could only be tasted by taking very small sips. Although the flavors were prominent, it was more an experience of inhaling aromas through the nose, and in terms of taste it was neither good nor bad.

After resting for 5 minutes, the coffee temperature dropped by about 10°C on average. Front Street Coffee tasted again: the original 55°C Americano now tasted lukewarm, close to room temperature. The taste and flavors were very prominent, but the aroma began to weaken and the bitterness increased somewhat. The original 65°C Americano went from slightly scalding to warm on entry. Like the 55°C cup, the taste and flavors were more prominent than five minutes earlier, but because the temperature had not dropped too low, the aroma was still rich and bitterness had not yet appeared.

The original 75°C Americano performed the best at this point—comfortable on entry, with abundant aroma and rich layers, very close to how the original 65°C cup performed when freshly made. The original 90°C Americano was still scalding and still required small sips, with both mouthfeel and taste inferior to the previous three.

By 20 minutes, the aromas of all the coffees were less prominent than before. The original 55°C coffee was no longer warm—it drank like a room-temperature Americano, with greatly diminished mouthfeel and taste, offering the shortest enjoyment window. Next was the 65°C Americano, whose temperature had dropped below 45°C, with mouthfeel and taste still better than the former. The 75°C Americano was still warm, still delivering a good mouthfeel and taste. The 90°C Americano, though it had dropped to a temperature that allowed large sips, no longer had an outstanding flavor expression due to aroma loss. Compared to the previous three cups, it provided the fewest quality experiences throughout the process.

If ranked by the overall experience when the hot Americano is freshly made, the order is: 65°C > 75°C > 55°C > 90°C. If ranked by the aroma and overall performance the coffee provides within 20 minutes, the order is: 75°C > 65°C > 55°C > 90°C.

It can be seen that dine-in hot Americano is not really suitable for preparation with excessively high water temperatures. High-temperature hot water not only easily scalds the mouth but also reduces the sensitivity of the taste buds, affecting the taste experience. At the same time, excessively scalding temperatures cause us to miss the golden tasting window for coffee, unable to fully enjoy it when the aroma is at its richest. Therefore, when serving dine-in hot Americano, it is best to avoid using water that is too hot.

Of course, too low a temperature is also no good. Although a lower temperature allows the coffee to reach its optimal drinking temperature immediately after preparation, it also cools down in a shorter time. Not everyone will finish a cup of coffee in a short period. If Americano is made with water that isn't hot enough, the experience of hot Americano will be greatly compromised due to overly rapid cooling.

Therefore, when making dine-in hot Americano, Front Street Coffee controls the water temperature at 75±5°C. This ensures the coffee has enough temperature to extend the enjoyment window, while not being so hot that the taste buds struggle to identify the coffee's deliciousness.

There are two things to note: First, when serving hot Americano, it is best to use a preheated coffee cup; otherwise, an un-preheated cup will absorb the water's heat and lower the coffee temperature in the cup. Second, the temperatures recommended by Front Street Coffee above apply only to dine-in service, not to takeout. Takeout involves 10 to 30 minutes of delivery time, and the temperature drop during delivery needs to be taken into account, so that the customer receives a hot Americano at a suitable temperature.

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