Best Electric Milk Frothers for Cold Foam & Iced Lattes (2026)

The British summer of 2026 has arrived, and with it the insatiable thirst for iced lattes, cold-foam cappuccinos, and frothy matcha served over ice. While we've reviewed countless electric kettles for hot tea over the years, the rise of cold foam presents a different challenge: you need a frother that excels at cold aeration, not just steaming milk to 65°C. The good news? This year's crop of automatic milk frothers has finally caught up, with dedicated cold-foam modes that rival what you'd get at your local café.

Electric milk frothers work by whisking air into milk proteins—a process we've explored in depth in our tea foam science guide. But cold foam is trickier than hot: without heat to denature casein, you need higher fat content (ideally 3% or above) and more aggressive agitation to achieve stable, velvety microfoam. The frothers we've reviewed here all claim to handle both cold brew iced drinks and traditional hot cappuccinos, but not all deliver equally. We've ranked them by cold-foam performance, versatility, and ease of cleaning—the three factors that matter most when you're making iced matcha lattes every morning.

A quick note on capacity and technique: most of these frothers hold 240–300 ml for heating but only 115–250 ml for frothing, because foam needs headroom to expand. If you're a devotee of Hong Kong milk tea or teh tarik, you'll appreciate the magnetic-drive technology in the top models—it creates the same cascading aeration as manual pulling, minus the arm workout. Now, let's froth.