Calma uniquely delivers milk to the baby only when a vacuum is created, and stops the flow when the baby relaxes to pause and breathe. Thus the baby’s natural feeding behaviour can be maintained With Calma, the innovative feeding solution for breastmilk, baby uses the feeding behaviour learned at mother’s breast. Using Calma makes switching from breast to bottle and back again easy. Every baby develops an individual and specific feeding behaviour whilst on the breast. During breastfeeding, a baby sucks, pauses and breathes in his own rhythm. Milk flows best, when baby creates a vacuum. But conventional bottle-feeding technique is different from breastfeeding and finding the right solution to feed expressed breastmilk can be a challenge.