As is known that the longest time block liner contacts with fish would be 18-24 months. With such a long time direct contact with fish, the security of the liner is significant.
To guarantee safety of the liner, the key point is that the raw materials are safe.
Food grade wax is applied in the field of food industry for dozens of years. It’s so popular that it won’t be the security barrier of block liner. Thus, the rest material --- paper would be very important to the total safety of the liner.
Currently, main index of the liner safety assessment is content of heavy metal. The EC regulation and FDA law has very detail requirements on heavy metal content of the materials and articles intended to come into contact with food. However, one key factor that may also impact the safety of food was neglected. That is content of optical brighteners.
Optical brightener is carcinogen. It can be fatal if people absorb too much of it. Research showed that optical brightener is hard to decompose if it is absorbed by human body. Once it combines with protein, it would be difficult to eliminate from body unless composed by the liver enzyme. Obviously, it would increase the burden of liver. And it is also proved that cell variability can be caused if the optical brightener residue in body for a long time, which means latency of cancer.
If block liner contains much optical brighteners, after the long time contact with fish, it is possible to permeate into the fish. This would be huge potential security problem. Thus, the optical brightener content must be valued when people buy block liner and fish blocks.
According to test method of Chinese standard GB11680-89, optical brightener content of Risen liner is 0. That’s because our raw material is imported original paper from the USA. No chemical additives are added in the original paper.
RISEN LINER is more security block liner. We can guarantee more safety fish blocks for you. Welcome worldwide customers to communicate with us if anything we can help. Thanks!