Heat water to your favorite temperature with the touch of a button, including a raw temperature that warms up to 115°f (45°c). The glass raw tea kettle’s unique preset buttons allow you to set the kettle to your specific needs. Press “boil” to quickly and safely boil water. The auto-shutoff safety feature ensures the safe use of the kettle by automatically shutting the kettle off when the water reaches boiling point. Use the warm/select button to skip through the four various presets. Select the coffee preset and heat water to the set temperature of 195°f (90°c), perfect for making pour-over coffee or instant coffee. Select the black tea preset to brew your tea at 175°f (80°c). You may brew your tea in a separate cup or place loose tea leaves directly inside the kettle after the water has been heated. The glass raw tea kettle’s mesh filter located at the spout will filter out any solids so that you get a smooth and clear cup of tea. Select the green tea preset to brew your tea at 160°f (70°c). The warm function will keep the remaining water warm for up to 6 hours, or you may simply turn the kettle off by pressing the off button, as it only takes about 30 seconds to warm up again.