Just touch the power button in the middle to select 4 functions: Hot stirring with More bubble: use the frothing whisk with the stainless steel ring. Then, touch the power button once and release immediately, the hot stirring with more bubble indicator light will turn red.Hot stirring with small bubble: using the frothing whisk with a stainless steel ring. Then, touch the power button twice and release immediately, the hot stirring with small bubble indicator light will turn red.Hot mixing: using the heating whisk without stainless steel ring. Then, touch the power button three and release immediately, the hot mixing indicator light will turn red.Cold froth milk: using the heating whisk without stainless steel ring. Then, touch the power button four and release immediately, the cold froth milk indicator light will turn blue. Previous page Next page Why doesn't the milk frother respond when I press the function button? The function icons are indicator lights, not function buttons, and they are not used to select functions. To select functions, just touch the power button. The power button is touch-sensitive screen. Which milk froths better? For optimal foaming results, we suggest using whole milk (3% fat or higher). You can also try oat milk or almond milk, but keep in mind that the foaming effect may vary based on the fat content. How to prevent milk from burning? Avoid heating milk repeatedly for a long time and wash it as soon as possible after use to prevent milk residue from settling at the bottom and causing the milk to burn. How should we clean it? This product has a special non-stick coating on the inside, so cleaning up is a breeze! Just rinse it under running water and gently wipe it dry with a soft cloth. Just a heads up, be careful not to get the button or base section wet.