All plastic that comes into contact with food and drink, eg, drink bottles, certainly in Western countries, has been thoroughly checked as safe.
Most drink bottles are made from PET (number 1 below). This is safe for repeated use. See the excellent link below which deals with many wild stories about plastic bottles.
The Resin ID number indicates which plastic has been used to manufacture the bottle.
PET
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.
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.
Is it "polyethylene terephthalate"? Probably, and if so it's perfectly safe. Polyethylene terephthalate is the plastic soda bottles are made from.
To prevent environmental harm caused by melting plastic bottles, we can reduce our use of single-use plastic bottles, recycle them properly, and support initiatives that promote the use of sustainable alternatives like reusable bottles.
Their are hundreds of use for a PLASTIC BOTTLES like Art and making flowers out of cut up PLASTIC BOTTLES. If you want to know how to make flowers out of PLASTIC BOTTLES look on YouTube.com
plastic is cheaper than some other materials and it keeps the fluid in it fresh
The baby bottles are generally made of plastic,disposable liners and glass, glass bottles are heavy and breakable, the best option is to go for plastic ones, but make sure do not store milk in plastic bottles for a long time, just pour into it just before your baby is ready to eat. They are made BPA free and safe to use whereas disposable liners also typically BPA-free.
Single-use plastic bottles are a problem because they contribute to plastic pollution in the environment. These bottles take hundreds of years to decompose, leading to accumulation in landfills and oceans. The production and disposal of these bottles also contribute to greenhouse gas emissions and resource depletion.
They're lighter and more rugged than glass bottles.
it depends what you are using it for
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