Wait for the soft whistle from the Mr. Coffee Armidale 2.5-quart Stainless Lustrous and durable stainless steel construction features a non-reactive interior that keeps the taste of the water fresh, natural and free of metallic aftertaste. It blends the modern shape of the teakettle with the traditional whistling feature of the spout as it signals that the water is ready to serve and has come to a rolling boil. The curved top handle provides a sturdy grip, perfect for lifting and pouring. Safe to use on all cooktops. Hand wash only. Do not microwave. Since 1970, Mr. Coffee has been brewing great tasting coffee and other coffeehouse favorites at home. With the growing popularity of the coffee-to-go lifestyle and the immense craving for the next, big specialty drink, Mr. Coffee continues to help you conquer the morning, the day and beyond - with Simply Great Coffee.