Used, functional. The Momcozy Portable Milk Warmer is designed to make feeding time effortless, whether you’re at home or on the go. With dual heating modes, you can quickly switch between breast milk warming and water heating, ensuring the perfect temperature for your baby—whether you’re preparing formula or warming stored milk. Fast & Efficient Heating No more waiting! This milk warmer heats water to 104°F in just 3 minutes and warms refrigerated breast milk to 98°F in just 5 minutes, so your baby’s milk is always ready when needed.