Foodgrade materials and fast, even heating Constructed with professional foodgrade materials and 18/8 stainless steel workmanship to resist rust and corrosion. All surfaces that contact water or food are foodgrade and easy to clean. Inner cooking surface uses foodgrade 304 stainless steel for added antirust protection. Threelayer upgraded base for fast, even heat Upgraded 3layer bottom: inner 304 stainless steel, middle aluminum for rapid heat transfer, and outer 430 stainless steel for strong magnetic conductivity. Heats faster and distributes heat more evenly on induction cooktops than singlelayer bottoms. More resistant to rust and less prone to leaks than ordinary singlelayer designs. Loud, reliable whistle Builtin whistle gives a clear, audible signal when water reaches boiling, making it easy to notice even in noisy rooms so you can focus on other tasks without overboiling. Broad stovetop compatibility Safe for use on induction cookers, gas stoves, electric ceramic stoves, halogen stoves, wood stoves and other common household stovetops. Suitable for homes, offices, dormitories and apartments. Practical benefits at a glance Faster boil time with durable, heatconductive construction. Foodgrade surfaces for safer, easier cleaning and longterm use. Noticeable whistle prevents forgotten kettles and wasted energy. Designed to be rustresistant and waterleakresistant compared with singlelayerbottom kettles. Typical use scenarios Morning routine: Quickly boil water on an induction cooktop for coffee or tea before leaving for work. Office or dorm: Use on a kettlesafe hot plate or electric ceramic stove to prepare instant meals and hot drinks between tasks. Outdoor or backup cooking: Reliable on gas or wood stoves for camping, power outages, or small kitchen setups. Materials and performance highlights Foodgrade surfaces, 18/8 stainless steel construction. Inner layer: foodgrade 304 stainless steel. Middle layer: aluminum for fast heat transfer. Outer layer: 430 stainless steel for induction compatibility and even heating. Loud whistle for clear boil notification. This kettle is designed to combine safety, durability and practical performance for everyday boiling needs across a variety of stovetops and settings.