Product Overview

Instruction Manual (pdf)

Introducing Calma: Designed exclusively for breastmilk feeding.

Switching from bottle back to breast has never been easier. Calma was developed using evidence-based research on babies' natural feeding behavior so you can enjoy your breastfeeding bond longer.

With Calma, the milk will only flow if your baby works and creates vacuum to remove the milk. This enables the feeding behavior learned at the breast to be used with Calma.

Watch the Calma video

Why Calma? Learn more

Tips for breastmilk feeding with Calma



Vented nipple Helps avoid gassiness as the bottle is vented through our unique air-control system
Mimics natural feeding behavior Supports easy transition from bottle to breast. Research has shown that with Calma, your baby is able to maintain the learned feeding behavior that your baby exhibits when breastfeeding
Flow control valve Allows baby to control milk flow. Milk only flows when baby creates a vacuum
Calma doesn't drip You can turn Calma upside down and it still won't drip. Your baby needs to apply a certain level of vacuum in order to get milk out
One size/shape nipple For all stages of breastmilk feeding. The flow, shape and length of Calma are designed to suit your baby's needs as your baby grows
Compatible with all Medela breastmilk bottles
Breastfeeding must be well established before introducing Calma
Made without BPA All parts that come into contact with breastmilk are not made with BPA

What’s Included

  • #68021: 1 Calma with 5 oz. (150 mL) breastmilk bottle and 2 lids
  • #68022: 1 Calma with 2 - 8 oz (250 mL) breastmilk bottles and lids
  • #68020: 1 Calma nipple with lid 

Plastic bottles and component parts become brittle when frozen and may break when dropped. Also, bottles and component parts may become damaged if mishandled, e.g. dropped, over-tightened, or knocked over. Take appropriate care in handling bottles and components. Do not use the breastmilk if bottles or components become damaged.

Instruction Manual (pdf)


  • Unit Size/Packaging
    Calma set w/5 oz bottle: 5-1/4 x 6 x 2-38
    Calma set w/8 oz bottles: 6 x 7-1/4 x 2-1/2
    Calma replacement nipple:  5-1/4 x 3 x 2-3/8 
  • Unit Weight
    Calma set w/5 oz bottle: 0.28 lbs
    Calma set w/8 oz bottles: 0.45 lbs
    Calma replacement nipple: 0.2 lbs