Unfortunately, that answer is complete nonsense.
The plastic used to make drinks bottles is polyethylene terephthalate, or PET. It has a melting point of around 250 degrees C - a hot drink is going to be less than 100 degrees C - at that sort of temperature PET doesn't even soften, let alone melt.
Secondly, even if you did melt PET, it would not be miscible with water (and all drinks are water based). The PET would need to be at least 250 degrees C - try to mix that with a water based drink and all you would get is a very rapid "Whoosh" of steam and the drink would evaporate.
It is, therefore, quite impossible to drink water "with plastic in it" - it is not physically possible to dissolve synthetic plastics in water.
This sort of nonsense probably comes as a result of scaremongering over the use of PET bottles, where the usual comments made are that they "leech things into the drink, like aldehydes". The reality is that, yes, PET can decompose to form aldehydes but only at very high temperatures (above the melting point), and in normal use the bottle would never get this hot. So this is a product of thermal breakdown found due to improper handling. There is also a lot of talk about the element antimony being "leeched" into water by PET. Again, yes, antimoney trioxide is used as a catalyst in the manufacture of PET, and a minute amount (parts per million level) of antimony containing species can find their way onto the surface of the plastic. However, in normal and correct use, this is removed by washing before the bottles are filled. So once again, if there is an antimony contamination issue it is purely down to incorrect handling.
PET
My wife always uses the dishwasher to sterilize the bottles. However, the bottles we use for our baby are dishwasher safe. If your bottles are not dishwasher safe, you may want to wash them with warm water and soap.
PET plastic bottles are generally considered safe for single use and do not leach harmful chemicals into the contents when used as intended. However, reusing these bottles or exposing them to heat can increase the risk of chemicals such as antimony leaching into the liquid. It is recommended to avoid reusing PET bottles and opt for other types of containers for long-term use.
No. ABS is safe for potable water.
Acids are stored in plastic bottles because most plastics are resistant to corrosion by acids and won't react with them. This helps to prevent leaks or breakage of the container, ensuring safe storage and handling of the acid. Additionally, plastic bottles are lightweight and cost-effective compared to other materials.
Plastic milk bottles are typically made of high-density polyethylene (HDPE) plastic, which is a durable and safe material for storing liquids such as milk. This type of plastic is recyclable and commonly used for food packaging due to its resistance to chemicals and moisture.
Plastic bottles are mostly recyclable
Most plastic bottles are a mix of new and recycled plastic.
Is it "polyethylene terephthalate"? Probably, and if so it's perfectly safe. Polyethylene terephthalate is the plastic soda bottles are made from.
they are better for enviroment because they last longer than plastic and are not thrown away as aften as plastic bottles
Most recycled plastic bottles are recycled into... plastic bottles, especially PET plastic, the one with the Number 1 in the triangle. Other kinds of plastic bottles can be again made into similar plastic bottles, or they can be "downcycled", that is, combined with other plastics to make things like garbage bins and garden furniture.
Well, plastic is made from used plastic bottles so I guess that they want to recycle.