Prep the Milk: Fill a tall glass or pitcher about one-third full with milk (warm or cold). Using a narrow container is key to preventing splashes and allowing the whisk to create a deep vortex. Positioning is Key: Submerge the whisk head into the milk before turning it on. Tilt the frother at a slight angle and keep the whisk near the surface—but still fully submerged—to pull in air and create bubbles. Froth and Move: Turn the power on and move the frother up and down for about 15–30 seconds. You will see the milk double in volume as it transforms into a thick, creamy foam. Switch Off & Clean: Turn the frother off before removing it from the milk to avoid a "milk shower." Rinse the whisk head immediately under warm soapy water or pulse it in a cup of clean water to prevent milk residue from drying.