The Philips Avent Natural glass bottle is made of a glass commonly referred to as Pyrex. It has a high thermal shock resistance, so it can withstand sudden changes in temperature: you can sterilise the bottle and store it in the fridge. Please note that we advise you not to put the glass bottle in the freezer.
Additionally, to preserve optimal nutrition, we recommend you heat food gradually and not place bottles containing cold food directly into hot water.
