Teach you how to identify the toxicity of the plastic bags
the commonly used food plastic bags are made from polyethylene film, the film non-toxic, it can be used for holding food. There is also a film for PVC, polyvinyl chloride (PVC) itself is non-toxic, but according to the purpose of the thin film additive is often joined by harmful substances to human body, has a certain toxicity. So this kind of film and made of the thin film bag should not be used for holding food. If you want to identify polyvinyl chloride (PVC) and polyethylene plastic bags, plastic bags available to identify the following simple method. Polyethylene film ( Non-toxic) Film has milk-white, translucent ( A few stacked observation is particularly obvious) , it seems that feels more lubrication, surface coated with wax layer, forcibly shake, crisp voice, meet the fire inflammable, yellow flame, burning with mucus dripping, and a candle burning smell. Polyvinyl chloride (PVC) film ( General toxic) If not add pigment, is transparent, the touch the surface, some sticky forcibly shake, a deep voice, meet the fire won't burn, the flame out, green flame.