煮茶器具对比：铁壶vs陶壶vs玻璃壶vs电陶炉

Vessel selection for simmering aged white tea. Iron kettle (Nambu ironware) — releases trace iron ions, enhancing茶汤 mellowness and 'thickness,' suits 5+ year aged tea, but heavy and needs rust prevention care; Clay pot (Yixing/Jianshui) — good insulation, strong breathability, soft茶汤, suits 3-10 year aged tea; Glass pot — visible brewing process, observe color changes, doesn't alter tea taste, suits tasting and teaching; Electric ceramic stove + glass pot combo — most convenient, precise temperature control, suits daily use. Core principle: older tea needs heavier vessels (iron>clay>glass), new and mid-age tea fine with glass.