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Use plain green tea and unwrap the bag. Then, place the bag into the mug. If you're using loose leaf tea, measure out the tea and add it directly to the mug. You may use regular or organic green tea, if desired. Stir the tea bag or leaves around after you first add the water, and then allow the tea to sit undisturbed for the rest of the steeping time. If needed, you may steep the tea for up to 10 minutes. Since you won't be drinking it, you don't have to worry about it becoming bitter.
Add 1 green tea bag or 1 teaspoon (5 g) of loose green tea to a mug. Steep the tea for 3 to 5 minutes.