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Check the edge of the carafe to make sure the top has fit into place and that there is no gap between the lid and the carafe. Placing the top on improperly can cause a big mess when you froth! Hold the carafe firmly with your nondominant hand as you pump the plunger into the milk with your dominant hand. It may require more strength to pump the milk as the foam builds, which is normal. Lift the top off the carafe, and look at the milk. Some people prefer their milk only slightly foamy, while others prefer lots of foam. If your milk hasn’t reached your desired consistency, plunge it for up to 30 seconds more. Don’t plunge your milk for longer than 1 minute total by hand. Over frothing your milk can cause the air bubbles you’ve developed to break down. Tap the whisk at the bottom of the plunger on the edge of the carafe. This will shake any excess froth into the container. Tap the bottom of the carafe on the counter once to remove excessively large air bubbles. Your foam will settle a little bit, which is okay. Your milk is now ready to heat and serve.
Replace the lid of the frother. Plunge the handle up and down for 30 seconds. Check the foam’s consistency. Remove the lid of the carafe. Swirl the carafe in a circular motion once.