如今,家庭使用金属器皿越来越多,但是,如果使用不当,这些器皿的金属元素就会给人带来危害。铁制器皿最常见的是铁锅。如果用它熬煮酸性水果,果酸能溶解铁生成低价铁化合物。长期食用可使舌、齿龈呈现黑色,出现恶 Nowadays, there are more and more household uses of metal utensils, but the metal elements of these utensils can be harmful if used improperly. Ironware is the most common iron. If you use it to cook acidic fruit, acid can dissolve iron to generate low-cost iron compounds. Long-term consumption of tongue, gums appear black, appear evil