COSORI Electric Gooseneck Kettle Smart Bluetooth with Variable Temperature Control, Pour Over Coffee & Tea Maker, 100% Stainless

Key Features:Smart Functions: Enjoy full control of your kettle through your smartphone by connecting it to the free VeSync app.With VeSync, you can?Adjust your kettles temperature?Change the Hold Temp time?Schedule when you want your water to boil?Customize your own preset using the MyBrew function 4 precise temperature presets 100% 304 food-grade stainless steel Rapid boil in 3-5 minsHard water is water that contains calcium or magnesium mineral ions often in the form of carbonate. These ions do not pose any health threat.How should we descale?1. Fill the kettle with 1 cup of vinegar or lemon juice and 2 cups of water.2. Boiling the liquids and leave it for 2 hours.3. Rinse the kettle with clean water, and dry with a soft, clean cloth.4. Repeat as needed.Notes:1. Add at least 118 mL of filtered water to the kettle. Do not fill above the MAX line. Wipe any water from the outside of the kettle and the base.2.Its normal if your kettle exposes spot or rust on the stainless steel bottom after the first use if the water quality in your area is so hard.3. The kettle will stop heating once the kettle is lifted during heating.