Plastics have varying melting points depending on their composition and type. While some plastics may melt or deform when exposed to boiling water, others are designed to withstand higher temperatures. The behavior of plastic in boiling water will depend on factors such as the specific type of plastic, its melting point, and the duration of exposure.
Plastics like polyethylene (PE) and polypropylene (PP) have relatively high melting points and are less likely to melt in boiling water. They are commonly used for food containers and are generally considered safe for use with hot liquids. However, prolonged exposure to high temperatures can still cause these plastics to soften or deform over time.
On the other hand, plastics with lower melting points, such as polystyrene (PS) or some types of polyvinyl chloride (PVC), may experience melting or distortion when exposed to boiling water. These plastics are not recommended for use with hot liquids or in high-temperature environments.
It's important to note that some plastics may release chemicals or additives when exposed to high temperatures, which can be harmful if ingested. Therefore, it is always a good idea to check the specific instructions and guidelines provided by the manufacturer for the plastic product in question.