Plastic Water Bottles
Plastic material may leave behind harmful bacteria after repeated use, and can leach harmful chemicals into water such as BPA (bisphenol-a).
There are 7 types of plastic to be aware of. Each carries its own unique features and potential risks:
Always look for plastic bottles that are BPA-free. BPA-free plastic bottles are typically shatterproof, lightweight, and dishwasher-safe. Opaque, see-through plastic bottles are generally BPA-free.
Avoid reusing or heating a plastic water bottle. Scratches on the surface can also leach contaminants into your water.
Glass Water Bottles
Glass bottles are a great alternative to plastic. They are recyclable, biodegradable, reusable, and do not alter the taste or chemical composition of water stored.
There are a number of different types of glass. Some glass, such as borosilicate is highly heat resistant. Others retain heat at a higher rate. Many are also designed to be shatterproof, which is handy for traveling.
Stainless Steel Water Bottles
Stainless steel is highly durable, cost-effective, and doesn’t alter the taste/chemical composition of your bottled water. Some metal water bottles, however, contains aluminum, which is not a food-grade material. As a result, manufacturers will often line their steel water bottles with plastic, which can contain BPA or other hazardous chemicals.
The safest kind of stainless steel is #304. If you are going with a metal water bottle, choose a 304 stainless steel one for the safest, most economic option.
Want to know more about water bottles? Read our review of the best glass water bottles!