Deerma DEM-DR035S electric kettle thermos bottle
The Deerma DEM-DR035S combines a 350 ml water-heating cup with temperature control for tea, coffee and everyday hot drinks. Its 300W heater operates from a mains power supply. The portable bottle format is useful at a desk or when travelling, but it does not boil water from a battery.
Choose a temperature or boil water
Select a temperature between 40°C and 90°C, or use the separate boiling function to heat water to 100°C. Two touch controls sit beside the real-time water-temperature display. Temperature maintenance requires a power connection; it is not a promise of hours of active heating after unplugging.
Stainless steel liner and insulated body
The 304 stainless steel liner holds the water, while the three-layer insulation helps slow heat loss and reduce heat transfer to the outside. The gallery describes a steam-pressure relief valve and automatic shut-off when excessive temperature is detected. Treat the water, steam and lid as hot during use.
Heating time
The product gallery advertises boiling in approximately 8.5 minutes. This is a stated product claim rather than an independently measured result; the starting water temperature and fill level affect heating time.
Use and care
Check the voltage on the appliance label before use, especially when travelling. Follow the supplied manual for filling, lid position, pressure release and cleaning. Do not immerse the electrical connection in water. Allow the unit to cool before packing. Do not rely on a warm-water preset alone for preparing infant formula.