Once you have expressed your milk, you need to choose the right way to feed your milk to your baby. You want to find an optimal solution that does not interfere with your breastfeeding. Calma is able to offer an innovative solution, enabling your baby to switch from breast to bottle and back. Your baby has his own natural feeding behavior whilst on the breast and learns this from the very first time of feeding How to use: Follow the cleaning instructions. Do not use Calma while sleeping or overly drowsy. This is a single-user product. Use by more than one person may present a health risk. Caution & Warnings: Always use this product with adult supervision. Never use feeding teats as a soother. Continuous and prolonged sucking of fluids will cause tooth decay. Always check the food temperature before feeding (risk of burning). Keep all components not in use out of reach of children. Do not warm milk in a microwave oven as this may cause uneven heating and could scald your baby