What keeps a teapot warm?

A teapot stays warm primarily due to its material and design. Teapots made from thick ceramic or cast iron retain heat effectively, while those with insulating features, like a cozy or cover, further enhance heat retention. The hot tea inside also helps maintain the temperature, as the heat from the liquid transfers to the pot's surface. Additionally, placing the teapot on a warming tray or using a tea light can help keep it warm for longer periods.