Milk frother manual creates an airy foam in less that 30 seconds for a cafe style coffee you will love from the comfort of your own home. Glass carafe made of durable heat-resistant borosilicate glass Warm milk in the microwave after frothing. Quick and easy beat the milk by moving plunger frother up and down about 60-90 times or until you feel milk getting thicker. Durable design milk frother features a silk plastic lid with a deep rim to prevent foam from escaping the spout and a plunger handle that is comfortable to grip.