BPA substitute could spell trouble: Experiments show bisphenol S also disrupts hormone activity. There really is no entirely safe type of plastic; there are just degrees of toxicity. Your best option is to minimize your use of plastic as much as possible, and rely more on glass (to store your left overs) and stainless steel (water bottles). It is critical to avoid heating foods in plastic (such as in a microwave) because that significantly increases leaching of plastic into your food.
Cork Bottle - The functional simplicity of the water bottle does not mean we cannot strive to improve it. Polisport is pioneering a green technological solution by using a mixture of plastic and cork in the production of water bottles. This translates into reduced use of plastic in favour of a natural raw material with better thermal performance. Cultivated and extracted using sustainable methods, the cork also adds lightness to the bottle while offering a pleasant touch and better grip.