Epsilon Kettle Composition: Epsilon made this with high quality cool touch PP housing and food grade 304 stainless steel the EK Collection simply delivers the purest of waters. This tea kettle comes with a large digital display and 4 pre-set temperatures. Boiling Point: The professional temperature controller has a built in automatic shut-off when water reaches boiling point. This precise control allows your electric kettle to reach the desired boiling point for your water or tea and then safely shut down. Epsilon electric kettle also has a keep warm function preserving heat to 85 degrees.