家家做饭离不开炉灶,如今不但城市居民告别了煤火,用上了燃气灶具,就是许多乡村居民也一改传统的煤火灶,用上了燃气灶.燃气灶是方便了,但被烧黑的锅底实在让人看着烦.由于各地种种燃气成分不同,灶具的性能各一,燃烧的火焰也不一样,有红的,有黄的、有蓝的、有杂以红黄蓝的.可别小看火苗的改色.它说明了你的燃气灶的燃烧水平.一般来说是蓝色火苗最好.燃烧最充分,热能利用高,有害气体少,锅底也不易黑. Every family can not do without cooking stove, and now not only urban residents bid farewell to the fire, use gas stove, that is, many rural residents have changed the traditional coal stove, with a gas stove. Gas stove is convenient, but Was burned black pot is really annoying people because of the various gas composition around the different performance of a stove, the burning flame is not the same, there are red, yellow, blue, mixed with red and yellow Blue. Do not underestimate the color of the flame. It shows you the level of combustion of gas stoves. In general, is the best blue flame. Burning the most full, heat utilization, less harmful gases, the bottom is not easy to black.