Next, let's cut down on nonsense and explain clearly and concisely whether food grade sodium metabisulfite is harmful to your health.

焦亚硫酸钠是一种食品添加剂，在食品加工中作防腐剂、漂白剂、疏松剂。当作为漂白剂使用时，只限于熏蒸，不能用于浸泡等直接接触物体方式进行漂白。焦亚硫酸钠可引起人体肝肾伤害，严重的会造成急性中毒，甚至导致死亡。

Sodium metabisulfite is a kind of food additive, which is used as antiseptic, bleach and loosening agent in food processing. When used as a bleaching agent, it is limited to fumigation and cannot be used for direct contact with objects such as soaking. Sodium metabisulfite can cause injury to human liver and kidney, and even lead to acute poisoning and death in severe cases.

在日常生活中，购买者可从食品的色泽、气味等方面来作简单的判断。如买荸荠，可看其表皮颜色是否过于鲜艳，如鲜艳的话可再闻其是否有刺激性气味（是果实的话可削去表皮闻），如有刺激性气味，则一般可能经过药剂浸泡。

In daily life, buyers can make simple judgments from the color, smell and other aspects of food. If you buy a water chestnut, you can see whether its skin color is too bright. If it is bright, you can smell whether it has a pungent smell (if it is a fruit, you can cut off the skin and smell it). If it has a pungent smell, it may generally be soaked in medicine.

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The above is a detailed introduction to refined naphthalene, and we hope it will be helpful to you. If you have any questions, please contact us. We will provide services for you with our attitude http://www.jnjdbc.cn