Grate whistling kettle from Silit made in the most modern technology Silargan^®. Several layers of very sturdy and heat-resistant high-tech ceramic are fused with the ferromagnetic steel core at temperatures of 860 °C to form an inseparable compound. This makes Silargan^® ultra-hard, cut and scratchproof, non-abrasive and thus extremely durable. Unlike other materials, the ceramic surface is extremely smooth and thus long-luster, neutral to taste and hygienic.