4 Preset Programs for everyday needs Boiling Water, Tea Brewing, Coffee, and Infant Formula. The Tea Brewing program includes a timer function that lets you set different steeping durations to fully release the tea aroma. Removable Tea Strainer for loose leaf tea The built in tea strainer lets you add loose leaf tea directly. After brewing, easily separate the tea leaves to break from tea bag restrictions. With the filter removed, the kettle can also be used for heating drinking water, brewing coffee, and preparing formula milk, meeting diverse needs. Food grade materials for safe, durable use Durable 304 stainless steel and borosilicate glass construction. Water contact components meet food grade standards, ensuring a healthy boiling experience while locking in tea aroma. The design is resistant to scratches and cracks for long term use. 8 hour automatic keep warm After boiling, the kettle automatically switches to keep warm mode and maintains the set temperature for up to 8 hours for convenience. Use scenarios Start the day with precise tea brewing Use the Tea Brewing preset to control steeping duration and enjoy a fully released aroma. The keep warm function can hold the brewed tea at the desired temperature while you finish your morning routine. Quick hot water, coffee, or formula preparation Remove the filter to heat water for drinking, brew coffee, or prepare formula milk, providing flexible support for different beverage and feeding needs. Family or guest tea service Use the preset programs to prepare multiple cups of tea or coffee with consistent results, and rely on the keep warm feature to serve beverages over an extended period without repeated reboiling.