Key Facts
• Prolonged heat requires frequent hydration to prevent heatstroke.
• Survey by Ajinomoto AGF (April 2025): 70% own personal bottles, nearly half use daily.
• Sapporo schools allow personal bottles with tea and sports drinks.
• Sports drink-compatible bottles prevent rust caused by salt content.
• Popular features: dual drinking options (cup or direct), easy-to-clean designs.
• Middle and high schoolers prefer large bottles (1L+) with handles for portability.
• Top-selling bottle: 400ml size, handle-equipped, odor-resistant, dishwasher-safe.
• Simplified cleaning: integrated cap gasket reduces cleaning parts to two.
• Heatstroke prevention supported by diverse bottle options for daily use.
Summary
As heatstroke risks rise with prolonged hot weather, personal bottles have become essential for hydration. A 2025 survey by Ajinomoto AGF revealed that 70% of people own personal bottles, with nearly half using them daily. Sapporo schools permit students to bring bottles filled with tea or sports drinks, emphasizing hydration. However, using non-compatible bottles for sports drinks can cause rust due to salt content, making compatibility a key feature. Popular bottles include dual drinking options (cup or direct), large sizes (1L+) for active students, and easy-to-clean designs. The best-selling model, a 400ml bottle with a handle, is odor-resistant and dishwasher-safe, simplifying maintenance. These innovations cater to diverse needs, ensuring effective heatstroke prevention during summer.
