[. . . ] [. . . ] In extreme temperatures, the performance of the thermabag/ thermal tote may be affected. Infant formula manufacturers recommend feeds be made up when needed, to avoid the risk of the milk going off while you are out and about. Add formula milk powder to the pre-boiled warm water when your baby is ready to feed. To transport pre-measured doses of formula, use the Philips AVENT milk powder/ powder formula dispenser. [. . . ] [. . . ]