To use a kettle for tea brewing, follow these steps:

1. Fill the kettle with fresh, cold water.

2. Place the kettle on the stove or heat source.

3. Turn on the heat and bring the water to a boil.

4. Once the water reaches a rolling boil, remove the kettle from the heat source.

5. Allow the water to cool slightly to the desired temperature for the type of tea you are brewing.

6. Pour the water over your tea leaves or tea bag in a teapot or cup.

7. Let the tea steep for the recommended time.

8. Remove the tea leaves or tea bag and enjoy your perfectly brewed tea.

Using a kettle for tea brewing is a popular method due to its simplicity and the ability to control the water temperature. According to a study published in the Journal of Food Science, the optimal water temperature for brewing different types of tea varies. Green tea, for example, benefits from a lower temperature (around 160°F or 70°C) to preserve its delicate flavors, while black tea requires a higher temperature (around 212°F or 100°C) to extract its full flavor and aroma. Using a kettle allows for precise temperature control, ensuring that the tea is brewed to perfection. Additionally, a kettle provides a consistent flow of hot water, which is crucial for achieving an even extraction of flavors from the tea leaves.