Ordinary kraft paper is suitable for non-food packaging. Changhuan Paper said that the fluorescent agent content of ordinary white kraft paper often exceeds the standard by several times, which is also very harmful to human body and should never be used for food packaging. The following is the way to distinguish these two kinds of paper.

First, the important distinction standard: whiteness

Food-grade white kraft paper often adds a small amount of bleach, while ordinary white kraft paper adds bleach exceeding food-grade standards in order to pursue the beauty of color, making the color look super white and give people a good feeling. Therefore, the whiteness of food-grade white kraft paper is often low and even looks yellow. Therefore, whiteness is a very important reference standard when customers choose food-grade white kraft paper. If the whiteness is high, it goes without saying that it must be ordinary white kraft paper.

Second, the ash control

The production of food-grade white kraft paper is strictly controlled, and all indexes are configured according to food-grade requirements, so the ash content of food-grade white kraft paper is controlled at a very low level, while ordinary white kraft paper has a high ash content in order to reduce costs.

Third, the test report

According to China's requirements for food-grade packaging materials, food-grade white kraft paper must pass the QS test, but ordinary grade does not.

Fourth, the price

Although the price difference is not absolute, it is also an important reference value. The price of food-grade white kraft paper is usually above 8,500 yuan/ton, and ordinary kraft paper is usually around 7,000 yuan/ton. If the price of white kraft paper is very low, it goes without saying that it must be ordinary. After all, the production cost is there.