【12L FOOD GRADE BOILER】The capacity of the boiler inside this steam milk frother is up to 400 fl oz, meet the commercial needs of continuously serving cups. The boiler is made of food grade 304 stainless steel, no worry of hygiene. 【 ROTATABLE NOZZLE】The hot water faucet and steam nozzle can be rotated , so that you can use adjust the angle of them to fit fit containers. 【DOUBLE TEMPERATURE DISPLAY】Upgraded from traditional only a temperature display, this steam milk frother has both hot water temperature and cup temperature display: Real-time observation of the temperature of the beverage being heated, keep know the temperature of hot water. More indicators display the working status. 【20 MIN FAST HEATING】This commercial steam milk frother adopts a 2300W high power heating tube, ready the milk frother machine within 20 minutes. Copper coated protection make the heating tube not easy to accumulate scale. Step-by-step heating function ensures full boiling and continuous steam. 【SIX SAFE PROTECTION】Anti-scald knobs for safe; dry burning protection for avoid electric disaster; over-temperature protection that auto-shutoff if the temperature over the safe range; anti-leakage connection of boiler for stable working; over-pressure self-relief protection to avoid explosion; and drip-proof water outlet for safer