Rubber is a material that is sensitive to storage conditions. To stop the bottle cracking and losing its tightness before its time, it is important to follow a few rules.
- After use, drain the water completely, open the stopper slightly and let the inside dry — residual moisture encourages an unpleasant smell and the growth of bacteria.
- Storage: keep the bottle in a dry place away from direct sunlight and heat sources (radiators, heaters). Ultraviolet light and high temperature speed up the ageing of rubber.
- Shape during storage: do not fold the bottle into a tight roll or place heavy objects on it — this leaves permanent creases which over time turn into cracks.
- Stopper: store the bottle with the stopper unscrewed or only slightly tightened, so that pressure does not build up inside and the rubber does not deform.
- Check before every use: inspect the body for cracks, abrasions or signs of the rubber peeling apart. A damaged bottle should not be used.
The outside of the bottle can be washed with warm water and mild soap; aggressive cleaning agents and solvents destroy rubber. The inside does not need washing — it is enough to dry it thoroughly after each use.