To froth milk, start with cold milk, add air just under the surface until it grows by about a quarter for a latte or about half for a cappuccino, then keep heating it to 140 to 155°F (60 to 68°C) while it swirls into smooth, glossy foam. With an espresso machine you do this with the steam wand. Without one, heat the milk on the stove or in the microwave and froth it with a handheld frother, a French press or a jar. Whole milk and barista-style oat milk give the creamiest, most stable foam.
| Method | Foam you get | Best for |
|---|---|---|
| Steam wand | The finest, silkiest microfoam; heats and froths in one step | Lattes, cappuccinos, flat whites, latte art |
| Electric milk frother | Consistent foam, hot or cold, at the push of a button | Easy everyday lattes and cold foam |
| French press | Surprisingly fine foam; the best option without a machine | Lattes and cappuccinos; simple latte art |
| Handheld frother | Light, airy foam with larger bubbles | Cappuccinos, cold foam, quick drinks |
| Jar and microwave | Thick foam that sits on top | Cappuccino-style drinks when you have no tools |
| Whisk | Thin, bubbly foam | A frothy top in a pinch |
Choosing the Right Milk
Milk foams because its proteins wrap around air bubbles and hold them in place. Fat makes the foam creamier and richer but a little less voluminous, so the best milk for you depends on whether you want silky texture or big foam. Always start with cold milk straight from the fridge: it gives you more time to build foam before it gets hot.
| Milk | Foam | Notes |
|---|---|---|
| Whole milk | Excellent | Creamy, sweet, stable; the easiest for latte art |
| 2% milk | Very good | A little lighter, still smooth |
| Skim milk | Lots of foam | Big, stiff, dry foam that tastes thin; good for cold foam |
| Half-and-half | Fair | Very rich but foams less; used for a breve |
| Oat (barista version) | Very good | The best plant milk for steaming; regular oat milk foams less well |
| Soy | Good | Foams well but can curdle in very hot or acidic coffee |
| Almond | Fair | Thin foam that can separate; choose a barista version |
| Coconut (carton) | Fair | Light foam that fades quickly |
“Barista” plant milks have added fat and stabilizers so they steam more like dairy. Shake the carton well before using.
Our guide to the best milks for coffee compares flavor as well as foam.
How to Froth Milk with a Steam Wand
Steamed milk for one latte or cappuccino
About 30 to 60 seconds of steaming, depending on your machine.
- 12 oz (350 ml) stainless steel pitcher
- 4 to 6 oz (120 to 180 ml) cold milk
- Thermometer, optional
- Damp cloth
- Fill the pitcher. Pour cold milk to about a third full, just below where the spout starts, so there is room for it to grow.
- Purge the wand. Open the steam for a second or two into the drip tray to clear out condensed water.
- Position the tip. Hold the pitcher level and place the wand tip just under the surface, a little off center, so the milk will spin.
- Add air. Open the steam fully. You should hear a gentle hiss, like paper tearing. Keep the tip near the surface, lowering the pitcher slowly as the milk rises. Stop adding air when the milk has grown by about a quarter for a latte, or by about half for a cappuccino. This usually takes only the first few seconds, before the pitcher feels warm.
- Spin and heat. Raise the pitcher so the tip sits a little deeper. The milk should swirl in a whirlpool, folding the foam in and breaking up big bubbles. Keep going until the pitcher is too hot to hold for more than a second or two, about 140 to 155°F (60 to 68°C).
- Turn off the steam before lifting the wand out, then wipe the wand with a damp cloth and purge it again.
- Tap and swirl. Tap the pitcher on the counter to pop any large bubbles, then swirl until the milk looks glossy, like wet paint. Pour right away.
Practice without wasting milk by steaming water with a single drop of dish soap; it foams in a similar way. Then rinse the pitcher and wand thoroughly. For more on keeping your wand clean, see how to clean an espresso machine.
How to Froth Milk Without an Espresso Machine
For every method below except the electric frother, heat the milk first, on the stove or in the microwave, until it steams but does not boil: about 140 to 155°F (60 to 68°C). Use no more milk than fills your container a third to half full, because it grows as it foams.
- French press. Pour the hot milk in, fill no more than a third, put the lid on and pump the plunger up and down quickly 15 to 30 times, keeping the mesh in the milk. Tap and swirl, then pour. This makes the finest foam of any no-machine method. See our French press guide for the brewer itself.
- Handheld frother. Pour the hot milk into a tall mug or jug. Hold the whisk just under the surface at an angle and run it for 15 to 30 seconds, moving it down as the foam builds. Tap to settle the bubbles.
- Electric milk frother. Fill to the line, press the button, and it heats and froths the milk on its own in a minute or two. Most have a cold setting for iced drinks.
- Jar. Fill a microwave-safe jar no more than half full with cold milk, screw on the lid and shake hard for 30 to 60 seconds until the milk roughly doubles. Take off the lid and microwave for about 30 seconds; the heat sets the foam on top.
- Whisk. Whisk hot milk briskly in a saucepan or bowl, tilting it slightly, for about a minute. You will get a light froth rather than true microfoam.
Pair your milk with strong coffee from a moka pot or an AeroPress for a café-style drink without an espresso machine.
Milk frothing gear
- Handheld milk frother: cheap, quick foam for lattes and cold foam. Shop on Amazon →
- Electric milk frother: heats and froths at the push of a button. Shop on Amazon →
- Milk frothing pitcher: a 12 oz stainless pitcher for steaming and pouring. Shop on Amazon →
- Milk thermometer: stop at 140 to 155°F so the milk stays sweet. Shop on Amazon →
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Latte vs Cappuccino Foam
| Drink | How much to stretch the milk | Foam on top |
|---|---|---|
| Flat white | Very little, about 10 to 15% | A thin, velvety layer |
| Latte | About a quarter | About ½ inch (1 cm) |
| Cappuccino | About half | About ¾ to 1 inch (2 to 2.5 cm), thicker and airier |
| Cortado | Very little | Little or none |
See latte vs cappuccino and our guide to the cortado for how each drink is built.
How to Make Cold Foam
Cold foam is milk frothed without heating, spooned or poured over iced coffee or cold brew. Skim and 2% milk foam best cold. Froth very cold milk with a handheld frother, a French press or the cold setting on an electric frother for 30 to 60 seconds until thick. Add a splash of syrup or a spoon of heavy cream before frothing for a sweeter, richer topping. For another fluffy iced topping, try cloud coffee.
Common Mistakes and How to Fix Them
- Big, soapy bubbles: too much air, or the tip was too high and spitting. Add air for a shorter time, then sink the tip and let the milk spin longer. Tap and swirl before pouring.
- No foam at all: the tip went in too deep from the start, or the milk was already warm. Start with cold milk and keep the tip just under the surface at first.
- Screeching: the tip is too deep or the milk is getting too hot. Bring the tip up slightly, and check the temperature.
- Burnt or flat taste: milk heated past about 160°F (70°C) loses its sweetness and starts to taste cooked. Stop at the point where the pitcher is too hot to hold.
- Foam and milk separate: the foam was not folded in, or the milk sat too long. Swirl the pitcher right before pouring, and pour soon after steaming.
- Watery foam: you skipped purging the wand. Always purge before and after.
Once you can make silky milk, use it in a homemade pumpkin spice latte or any drink from our list of coffee drinks.
Former roastery owner and coffee tour operator. Steve spent five years roasting coffee for his own shop and wholesale customers. More about Steve