Hot cups are harmful to health which should pay attention to

Speaking of harm, we must clear the dose to determine the concept of toxicity, that is, whether the lid will be hazardous to health, or depends on the amount of styrene monomer.

The amount of styrene monomer migration depends mainly on the temperature of the contact and the level of grease in the food and the contact time. Coffee, tea and other hot drinks, from the hot cup to the consumer to spend the time is generally very short, and other hot drinks cups and hot drinks contact is occasionally.

In the study of styrene migration of polystyrene packages used in packaging hot drinks, it was found that the amount of styrene monomer migration did not exceed 0.025% of its content. Based on the results of this study, it is assumed that the styrene monomer content in the polystyrene resin is 0.5% of the upper limit allowed in China and the amount of styrene monomer in a hot beaker (about 2-3 g in weight) is about Is 3.75 μg. The tentative daily maximum allowable intake of styrene developed by JECFA is 0.04 mg / kgg. For people weighing 60 kg, the maximum daily intake is 2400 micrograms. To achieve this amount of damage, the equivalent of about 640 per day (correction, the original is written in 107, in the calculation of the mistakes) of this hot cup, under normal circumstances it is difficult to achieve.

In addition, the amount of styrene monomer that may be dissolved by a lid may be lower than the amount of styrene in a bottle of beer. And worry about hot drinks cup lid, not as worried about the hazards of alcohol and tobacco, tobacco and tobacco carcinogenic harm is the evidence is very full.

At present, the US FDA believes that the release of styrene from polystyrene packaging materials can not meet the JECFA assessment of this harmful dose, so allow it to dress food. The Canadian Department of Health after the assessment that people contact with the amount of styrene monomer can not cause harm to people. According to the current world of use and research evidence, polystyrene food packaging materials as long as the use of properly, there will be no food safety problems. But it will cause the pollution, so we should pay more attention to the Styrofoam recycling to reuse the waste foam packaging.