常见的亚硫酸钠一般为白色、单斜晶体或粉末，对眼睛、皮肤、粘膜有刺激作用，可污染水源，受高热分解产生有毒的硫化物烟气，那你知道食品加工时使用亚硫酸钠的注意事项具体内容吗？下面氢氧化钾厂家为您解答。

The common sodium sulfite is generally white, monoclinic crystal or powder, which is irritating to eyes, skin and mucous membrane, can pollute water sources, and produces toxic sulfide smoke when decomposed by high heat. Do you know the specific contents of the precautions for using sodium sulfite in food processing? The potassium hydroxide manufacturer will answer the question for you.

在食品加工时，使用亚硫酸钠应注意以下几点：

The following points should be noted when using sodium sulfite in food processing:

1）其溶液不稳定易挥发，现配现用，以防亚硫酸钠不稳定而挥发。

1) Its solution is unstable and volatile, so it is ready for use to prevent sodium sulfite from volatilizing due to instability.

2）食品中存在金属离子时，可将残留的亚硫酸氧化；还能使还原的色素氧化变色，从而降低漂白剂的效力。

2) When metal ions exist in food, the residual sulfite can be oxidized; It can also make the reduced pigment oxidized and discolored, thereby reducing the effectiveness of bleach.

3）用亚硫酸钠类漂白的物质，由于二氧化硫消失而容易复色，所以通常在食品中残留过量的二氧化硫，但残留量不得超过标准。

3) Substances bleached with sodium sulfite are easy to recolor due to the disappearance of sulfur dioxide, so excess sulfur dioxide is usually left in food, but the residual amount shall not exceed the standard.

4）不能抑制果胶酶的活性，会有损于果胶的凝聚力。此外亚硫酸渗入水果组织后，加工时破碎水果，才能除尽二氧化硫的，所以用亚硫酸保藏的水果只适于制做果酱、干果、果酒、蜜饯等，不能作为罐头的原料。

4) Failure to inhibit the activity of pectinase will damage the cohesion of pectin. In addition, sulfur dioxide can only be removed when sulfite infiltrates into the fruit tissue and breaks the fruit during processing. Therefore, the fruit preserved with sulfite is only suitable for making jam, dried fruit, fruit wine, preserves, etc., and cannot be used as the raw material of cans.

5）亚硫酸钠能破坏硫胺素，故不易用于鱼类食品。

5) Sodium sulfite can destroy thiamine, so it is not easy to be used in fish food.

亚硫酸钠要储存于阴凉、通风的库房。远离火种、热源。应与酸类等分开存放，切忌混储。不宜久存。储区应备有合适的材料收容泄漏物。人员很关键，使用产品要注意，更多产品信息就来我们网站http://www.jinhao360.com咨询吧！

Sodium sulfite shall be safely stored in a cool and ventilated warehouse. Keep away from kindling and heat source. It shall be stored separately from acids, and mixed storage is strictly prohibited. It should not be kept for a long time. The storage area shall be equipped with appropriate materials to contain the leakage. Personnel safety is critical. Please pay attention to using the product. More product information can be found on our website http://www.jinhao360.com Consult!