There are several alternative materials to plastic bottles that are more heat-resistant and environmentally friendly. Here are some options to consider:

1. Stainless Steel Bottles: These bottles are highly resistant to high temperatures and will not release harmful chemicals into your drink. Stainless steel is also durable and can be reused many times, making it a good choice for reducing plastic waste.

2. Glass Bottles: Glass is a safe material for storing a variety of beverages, including hot ones. Glass bottles do not contain harmful chemicals and can be recycled without losing quality. It also will not affect the taste or smell of the drink.

3. Polypropylene (PP): Bottles with recycling code 5, namely polypropylene, are known as heat-resistant plastics and are often used for food packaging that requires heating. PP is safe for repeated use and can withstand high temperatures, making it a good alternative to regular plastic bottles.

4. Bioplastics: Some types of bioplastics, such as PLA (Polylactic Acid), can be used as an alternative to plastic bottles. However, it is important to ensure that the bioplastic is designed to withstand high temperatures, as some bioplastics can soften or decompose at certain temperatures.

By choosing one of these materials, you can ensure that the bottles used are safer and more environmentally friendly than conventional plastic bottles.

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