Our Press 'n' Pop? baby food freezer pots are perfect for freezing homemade foods or breast milk in convenient 1oz/30ml portions. Their secure clip-on lids ensure that baby's food is protected from contamination and their soft Press 'n' Pop? bases make it easy to pop the frozen food cube out ? OR? microwave defrost and warm straight from the freezer and feed directly from the pot! THE CHOICE IS YOURS! Our Press 'n' Pop? mini freezer pots are made from safe BPA free materials.