Multiple nipple sizes are not required as the baby controls the flow of milk through vacuum. The baby will apply more or less vacuum to Calma as its need for milk changes throughout breastfeeding duration.
Is Calma compatible with all Medela bottles/containers?
Calma is compatible with all Medela containers, including the Colostrum containers, 80 ml, 5 oz and 8 oz bottles.
Can Calma only be used with breastmilk?
Calma has been designed to be exclusively used with breastmilk and as such we cannot attest to Calma being used with other food.
Can Calma be used with other manufacturer's bottles on the market?
Calma has been designed to be used with Medela's bottles and containers. We have not done testing on other manufacturer's containers. You may find that you can thread Calma onto other bottles but you may find that this combination may leak or cause other issues. We do not recommend using Calma with any other manufacturer containers.
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