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How to Make a Sparkling Espresso Bomb Americano Coffee at Home

April 10, 2026
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How do you make a sparkling espresso bomb americano coffee?

A sparkling espresso bomb is an americano coffee built on carbonated water instead of still water. Pour a fresh espresso into a small shot glass, wipe the glass bottom with a lemon slice, dip it in sea salt, then drop the glass into a tall glass of clear sparkling drink. The fall takes two to three seconds and releases a burst of foam.

The drink follows the depth charge idea borrowed from cocktails, and it sits alongside iced, lava and ice cube americanos in the wider family of specialty americanos. Only four items are needed: espresso, sea salt, a lemon slice and a light-colored carbonated drink. The lemon and salt add electrolytes while the bubbles and caffeine supply the lift.

The possibilities for Americano go far beyond simply adding hot water. From iced Americano to sparkling Americano, to lava Americano and ice cube Americano, each form delivers a completely different taste experience. Recently, a drink called the "sparking espresso bomb" has gone viral online, inspired by the classic cocktail depth charge. The method involves dropping a small cup containing espresso into carbonated water, instantly creating a spectacular burst of foam, offering both visual appeal and great taste. This article will use Sprite as an example, paired with Front Street Coffee Strawberry Candy Espresso Blend, to break down the steps and key points for making this specialty Americano in detail, helping coffee lovers easily recreate it at home.

A detailed explanation of how to make espresso deep-water bomb coffee, sharing the taste of Sprite sparkling Americano and production techniques

Those who follow Front Street Coffee content surely already know that "Americano" isn't limited to the conventional method of just adding water—it can take on many different forms, such as iced Americano with no water at all, sparkling Americano made with carbonated drinks instead of water, lava Americano with air injected to create a dense foam, and ice cube Americano where espresso is pre-frozen into cubes and then melted with water... Each form has its own merits and tastes distinctly different.

Recently, it seems inspiration was drawn from the classic cocktail "Depth Charge," and a new wave of Americano coffee experimentation has taken over YouTube. The specific process is: first pour espresso into a mini shot glass, wipe the bottom of the glass with a lemon slice to coat it in juice, then dip it in a small amount of sea salt, and finally let the small glass drop under gravity into transparent carbonated water.

The entire fall lasts only 2 to 3 seconds, but the reaction is quite intense—the cup containing espresso is like a "bomb" dropped into carbonated water, ultimately stirring up a spectacular burst of foam. Because of this, netizens named this creative Americano the "sparking espresso bomb."

According to Front Street Coffee, like other specialty Americanos, the ingredients and steps for this espresso bomb aren't complicated—you just need espresso, sea salt, a lemon slice, and a light-colored carbonated drink. The caffeine provides the refreshing pick-me-up, the bubbles stimulate the brain to release dopamine, and the lemon and sea salt help replenish electrolytes—together they make an ideal combination.

To make this espresso bomb, you need two transparent coffee cups—one large and one small. If you want the ideal "explosion" visual effect, the choice of containers matters. The large cup should hold at least 300ml and have a wide rim so the foam doesn't easily overflow when it rises; the small cup should at minimum hold one shot of espresso and be able to fit completely into the center of the large cup.

A detailed explanation of how to make espresso deep-water bomb coffee, sharing the taste of Sprite sparkling Americano and production techniques

To highlight the refreshing qualities of iced coffee, today we're using Front Street Coffee Strawberry Candy Espresso Blend to extract the espresso. This bean combines three renowned origins—Colombia, Costa Rica, and Ethiopia. When used for espresso, it exudes a sweet, ripe fruit aroma, with the juicy sweetness and acidity of grapes and berries rushing forward on the first sip, accompanied by rose floral notes, and a finish of almond and cocoa—perfect for making summer drinks.

For the carbonated drink, Front Street Coffee went directly with a bottle of Sprite. For one, it provides sweetness, and for another, its transparent liquid allows the bursting bubbles to be seen more clearly.

A detailed explanation of how to make espresso deep-water bomb coffee, sharing the taste of Sprite sparkling Americano and production techniques

Step one: first pour 120ml of soda into the large cup;

Step two: take a clean plate, sprinkle a small pinch of sea salt on it, and place the lemon slice nearby;

Step three: use 20g of Front Street Coffee Strawberry Candy Espresso Blend to extract a double ristretto, yielding about 32ml of espresso in roughly 25 seconds—use the small cup directly to catch the espresso;

Step four: rub and spin the small cup containing the espresso on the lemon slice a few times, then lightly dip it in the sea salt (be careful not to dip too much, or it will taste too salty);

A detailed explanation of how to make espresso deep-water bomb coffee, sharing the taste of Sprite sparkling Americano and production techniques

Step five: Attention!! At this point, don't rush to "drop the bomb"—first bring the bottom of the small cup close to the surface of the sparkling water and pause briefly. From the side, you can observe that the moment the sea salt and lemon touch the Sprite, clusters of foam blossom forth as if boiling;

Step six: after the initial bubbling reaction has mostly subsided, slowly let go and let the espresso cup sink to the bottom. At this point, the crema on the espresso's surface reacts with the soda, the carbon dioxide foam continuously surges upward, while the dark coffee liquid seeps downward—the impact is very noticeable.

In terms of taste, this espresso version of a depth charge greets you with the fresh scent of lemon on the first sip; the sweet Sprite combined with the richness of coffee, activated by the sparkling water, creates a sweet, fragrant, and refreshing mouthfeel. Thanks to the added sea salt, Front Street Coffee momentarily had the illusion of drinking a Guangzhou local beverage—salted lemon Seven Up.

A detailed explanation of how to make espresso deep-water bomb coffee, sharing the taste of Sprite sparkling Americano and production techniques

A few tips for making it:

1. Because sea salt and lemon are added, if you pair them with dark-roasted coffee beans, the resulting "espresso bomb" can easily become "salty + sour + bitter," so when choosing a carbonated drink, consider trying a flavored soda with some sweetness to balance the overall coffee profile.

2. When making sparkling coffee, the biggest worry is a violent reaction when pouring, ending up with spills everywhere. After multiple tests, Front Street Coffee found that as long as you only pour half the amount into the cup and gently stir a few times with a spoon to let some of the gas escape first, you can effectively prevent the coffee from overflowing.

3. Compared to a regular sparkling Americano, the biggest difference with the "espresso bomb" is that the entire shot of espresso needs to sink to the bottom of the drink, so be sure to use a heavy, thick-walled, small-capacity glass.

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

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