The manufacturer sets the expiry date on a Morisons Baby Dreams Feeding Bottle to guarantee the safety and integrity of the materials. After that date, the plastic or silicone may undergo microscopic changes that are not visible but can affect durability, hygiene, or even lead to chemical leaching. Expiry dates are not about visible damage; they are about material safety and assurance. Even if the bottle looks brand new and perfect, once it has passed its expiry date, it should not be used for feeding, because the manufacturer no longer guarantees its safety. The safest step is to discard expired bottles and use only those within their recommended usage period to protect your baby’s health.