In the cold winter, a cup of a hot drink can bring warmth to everyone and drive away from the cold. Our hot drinks will easily get cold, so a Ps lid is needed to increase the heat preservation time.
However, there have been media reports that the material of the lid of these hot beverage cups is polystyrene, which will release styrene monomer when heated, and styrene monomer may cause a decrease in immunity and increase the risk of cancer. However, in assessing the risk of a substance, in addition to its toxicity, it also needs to consider its migration into food.
According to the national standard GB 4806.6-2016 "National Food Safety Standard Food Contact Plastic Resins", only the residual amount of styrene monomer in polystyrene is required. In his master's thesis "Study on Styrene Migration in Food Grade Expanded Polystyrene", Chen Wenlin conducted a detailed study on the migration of polystyrene in different food simulants. The results of the study showed that: after immersing in distilled water at 65°C for 24 hours, the dissolution of styrene monomer was still not detected. Therefore, during the normal drinking process of hot drinks, the risk of styrene migration from the lid of the cup into the food is very low.
Whether it is a ps lid or a Paper cup sleeve , it is for the convenience of customers. accumpackaging.com