Sigg Rinse bottle and cap before first use; do not overfill above the neck to avoid spills when screwing the cap; store bottles with the cap removed; not intended for long-term storage of beverages; do not use for non-food liquids, for cooking, in microwave, or freeze (liquid expansion may damage the bottle). Children should use SIGG only with the special drinking cap and ensure it is securely fixed. Nutrition Accessories