All About

Microfoam

: The Milk Variety Used In Hot Coffee Recipe For Latte Art

What Exactly Is Microfoam?

Microfoam is finely textured milk used by baristas to make speciality coffee drinks like lattes, flat whites, and cappuccinos. The milk has a velvety, glossy texture and is made from the steam wand of an espresso machine. The wand pumps steam into a pitcher of milk, allowing the milk to incorporate tiny bubbles. The result is milk with a paint-like texture that can be used to create art, because, unlike regular, frothy foam, it does not float on top of the espresso. 

Simply put: The bubbles in microfoam are so incredibly small and tightly packed that they are virtually invisible to the naked eye, and feel soft and velvety on the tongue rather than dry or coarse. 

How is Microfoam Made?

Making perfect microfoam for espresso requires two steps: aerating (adding air bubbles) and texturing (incorporating them into a smooth, glossy swirl). Whether using an espresso machine or a manual frother, the goal is to break down large bubbles into a wet paint-like texture. 

With an Espresso Machine

1. Purge the wand: Turn on your steam wand briefly to clear any condensed water. 

2. Position the wand: Fill a metal pitcher about halfway with cold milk. Place the steam tip just beneath the milk's surface, slightly off-centre. 

3. Aerate (Stretch): Turn the steam on full blast. Lower the pitcher slightly until you hear a gentle "paper-tearing" or hissing sound. Do this for about 3–5 seconds until the milk expands slightly. Don’t do this for longer than 10 seconds. At the end, the milk should be covered with a soft foam; it floats on top of the milk.

4. Texturing (Incorporate): Raise the pitcher a few centimetres so the wand is deeper in the milk. Angle the pitcher slightly to create a fast, circulating vortex (whirpool). 

5. Finish: Turn off the steam when the pitcher becomes too hot to comfortably hold with your hand (about 60°C – 65°C). Tap the pitcher on the counter to pop any large bubbles, then swirl it vigorously until it looks like wet paint.

Without an Espresso Machine (French Press Method)

1. Heat your milk to about 60°C (140°F–150°F).

2. Pour the hot milk into a clean French press, filling it halfway.

3. Pump the plunger up and down vigorously right at the surface of the milk for about 20–30 seconds.

4. Remove the lid, gently tap the French press on the counter to break any surface bubbles, and swirl the milk to achieve a glossy texture. 

Can You Make Microfoam At Home?

Yes, you can, but it may not have the same finesse as microfoam created from an espresso machine. To make it at home, you can follow the French Press method listed above. Alternatively, you can even use a handheld milk frother.

To create microfoam with a milk frother, heat the milk first, then use a handheld electric frother just below the surface for a few seconds. Move it deeper into the milk and continue frothing until the foam becomes smooth and uniform. The finished microfoam should be shiny, velvety, and free of visible bubbles.

Important: Avoid over-frothing, which creates macrofoam instead of microfoam.

Pro-Tips for making Microfoam

• Milk Type: Whole milk or barista-blend alternative milks (like oat or soy) contain the ideal fat and protein structure for the smoothest microfoam.

• Temperature: Start with cold milk for greater control. And never overheat milk (go for a maximum temperature of 70 °C). Scalding breaks down the proteins, ruining the sweet flavour and separating the foam. 

• Technique: Add air only during the first few seconds of steaming or frothing, then focus on creating a whirlpool to break down larger bubbles. If you see large bubbles, tap the container on the counter and swirl the milk before pouring.

• Pouring: Microfoam begins separating as it sits, so use it as soon as it's ready for the best results.

Hot Coffee Recipe: Microfoam vs Macrofoam

While microfoam and the art it creates are specific to certain types of coffee, others, like a cappuccino, use macrofoam or dry foam. This has visibly large bubbles, and the white layer sits on top of the coffee, almost masking it. Here’s how the two differ: 

In simple terms, microfoam feels like melted ice cream or wet paint and blends into the coffee, while macrofoam is the fluffy, bubbly foam that sits on top of the drink.

Microfoam and Latte Art

Latte art is the name given to the decorative application of microfoam. It involves making patterns on top of the espresso in a cup of coffee. As the name suggests, this pattern-making is more common to lattes, but may even be used in other types of coffee drinks, like flat white. These days, even cappuccinos have latte art, though it’s often called a wet cappuccino then (because regular cappuccino has the dry macrofoam on top). 

Here’s why microfoam works best for latte art: 

• Microfoam has tiny, uniform bubbles that create a glossy surface, making latte art patterns appear clean and well-defined.

• Unlike macrofoam, which sits on top of the coffee, microfoam blends seamlessly with the espresso, allowing designs to form naturally as you pour.

• The silky texture allows the milk to pour in a controlled stream, giving baristas greater precision when creating hearts, tulips, and rosettas.

• Microfoam creates a clear distinction between the white milk and the dark crema, helping latte art patterns stand out visually.

• The fine bubble structure is more stable than larger foam bubbles, helping the design remain intact for longer after pouring.

• Beyond aesthetics, microfoam contributes a creamy, velvety texture that enhances the overall drinking experience.

Foamy, Not Frothy

Microfoam has been a part of hot coffee recipes across cafes for years. From the commonly found designs of heart, tulips or the Rosetta to more intricate symbols that require precision and specific tools, latte art is as gram-worthy as they come. But if it wasn’t for microfoam, these pretty designs wouldn’t be possible!