Making tea in a tea infuser mug is a piece of cake! Here we're using our glass tea infuser mug with a built-in tea infuser, but you can also use a standalone tea infuser in your favorite tea cup or mug. The basic steps: 1. Measure your tea leaves: we recommend using about one teaspoon of tea leaves for every six ounces of water in your pot or cup. 2. Heat your water: Different teas have different recommended water temps—here we're making black tea, using boiling water. 3. Infuse your tea leaves: