How to Steam Milk: Microfoam for Lattes

Good steamed milk looks glossy and pours as one smooth mixture. To make it, introduce a little air early, then keep the milk rolling as it heats. Large, dry bubbles usually mean too much air or too little circulation.

Start with cold milk and the right pitcher

Use fresh, cold milk and a clean pitcher with enough room for expansion. Choose a pitcher suited to the drink you are making: a small quantity in a very large jug can be difficult to circulate. The steam tip must reach the milk without forcing you into an awkward angle.

Whole dairy milk is a useful starting point for a creamy texture. Lower-fat milk can also foam, with a different mouthfeel. For oat, soy, and other plant-based drinks, a barista formulation can be easier to work with, but performance varies by brand. Keep the milk type consistent while practicing.

Steam milk step by step

1. Purge the wand. Briefly release steam into the drip tray to clear condensation, following your machine's instructions.
2. Position the tip. Start just below the milk surface, slightly off center. Use the pitcher's angle to encourage a rolling motion.
3. Add air early. Open the steam valve as directed for your machine and lower the pitcher slightly until you hear gentle, intermittent sipping. Loud spluttering means the tip is too exposed.
4. Stop adding air. Once you have enough expansion, raise the pitcher slightly so the tip sits deeper. Keep the milk moving to distribute the bubbles.
5. Stop at the desired temperature. For dairy milk, about 60–65°C / 140–149°F is a useful starting range. Allow for thermometer lag and follow the milk maker's guidance for plant-based products.
6. Close the valve before removing the pitcher. Wipe the wand immediately with a dedicated damp cloth, then purge it again.
7. Swirl and pour. A gentle tap can remove a few surface bubbles; swirling keeps the texture integrated. Pour promptly.

Change texture for the drink

A flat white generally needs less expansion than a cappuccino. Both should have integrated foam rather than a thick, stiff cap floating above hot liquid. Introduce the amount of air you need early instead of trying to add large bubbles at the end.

Milk that becomes very hot can develop cooked flavors and be harder to pour well. Heating does not create extra sugar; perceived sweetness and texture change with temperature.

Fix the most common problems

• Big bubbles: keep the tip closer to the surface during aeration and establish circulation sooner.
• Hot but thin milk: introduce a little more air before the milk warms substantially.
• Stiff, spoonable foam: reduce aeration and spend more of the session circulating.
• Weak or uneven steam: check the machine is ready and clean the tip according to its manual.

For a specific problem, use our milk steaming troubleshooting guide. Our cortado recipe is a useful way to practice a smaller milk drink.

When comparing home espresso machines, consider steam recovery and the number of milk drinks you make back to back. Breville's microfoam tutorial also demonstrates the sequence of texturing before reaching the final temperature.