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炒菜时油要几分热才能放葱花

更新时间: 2020-07-12 00:00:00     

炒菜前放入炒锅的食油烧至五六成热即可下菜煸炒放葱花。如果油烧得过热,甚至烧至冒烟,油本身的营养素遭受损害,而且油过热,菜下锅后易把菜烧焦,也破坏了菜的营养价值。另外,炒菜油烧得过热,在油底会出现一种很浓的硬脂化合物,人体摄人后会使胃粘膜坏死,引起低酸胃炎和胃溃疡,久而久之甚至可能发生胃癌。

关键词: 炒菜 才能 葱花

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