The PET used in our refillable water bottles is virgin PET, a grade approved for use in food containers and packaging in accordance with the standards set by the Food Sanitation Law of Japan. Additionally, PET material is approved as safe for contact with foods and beverages by FSANZ, the regulatory authority for food safety in Australia and New Zealand.
Regarding the specifications and handling of the product, we kindly ask that you use the bottles within the following care instructions:
- Heat resistant up to 70°C and cold resistant down to 0°C.
- The bottle is specifically designed for water or MUJI tea (at room temperature or below).
- It is not intended for use as a storage container.
- The bottle is intended for hydration during outings or desk work. For hygiene reasons, we recommend washing the bottle after each use on the same day, draining it thoroughly, and allowing it to dry.
- This product is not designed for long-term use. We recommend regular replacement (depending on usage, roughly every 3–4 months or each season).
This information can also be found on the English label applied to the products.
