【THREE-HOLE NOZZLE EFFICIENCY】The round three-hole nozzle design of this espresso frother delivers strong airflow and rapid milk rotation, producing smoother, finer froth in less time 【FLEXIBLE HEATING OPTIONS】This milk frother is compatible with both open flame and electric heating, allowing you to generate steam conveniently according to your preference 【BUILT-IN SAFETY VALVE】Maintains stable pressure between 1–2.5 bar. Automatic release at 0.2 bar ensures safe operation and consistent frothing quality with this barista milk frother 【DURABLE STAINLESS STEEL & QUARTZ GLASS】Constructed with premium stainless steel and aerospace-grade quartz glass, this coffee steam frother resists high temperatures (up to 1000°c), pressure, and corrosion for long-lasting use 【INNOVATIVE STEAM FROTHING】High-pressure steam technology in this steam frother creates rich, velvety milk froth with ease, while also efficiently heating coffee or milk tea