Momcozy Breast Milk Bags 50 Pcsprotect and preserve every drop of your liquid gold… with absolute safety and a smart, ideal heat alert!Protect and preserve every drop of your precious milk with maximum safety and convenience. Momcozy breast milk storage bags with a built-in temperature sensor are designed to organize, freeze, and thaw breast milk without any worry or stress.These durable, pre-sterilized bags feature an innovative color-changing indicator that reflects the milk’s temperature, eliminating guesswork when warming a bottle and showing you precisely when the milk has reached the ideal, safe temperature for your baby. Thanks to their reinforced double side edges and secure double zipper closure, these bags are leak-proof and freezer-burn-free, whether stored upright or stacked flat.

Key features and benefits:

• Smart temperature sensor indicator: No need to use a thermometer anymore! The built-in temperature sensor in the base of the pouch changes color based on the milk temperature, to instantly inform you of the feeding status:
• Purple color: very cool (below 36C ).
• Blue color: The ideal temperature for breastfeeding (from 36C to 40C ).
• White color: very hot (above 40C ).
• An innovative design separates filling and pouring: Designed with borders that completely prevent contamination and contact. Pour fresh milk through the double top zipper, and when it’s time to feed, simply cut along the spout line on the side or bottom to pour cleanly without touching the top seal through which the milk entered.
• Double-strength, leak-proof shield: Made from extra-thick, puncture-resistant, food-safe plastic, with reinforced side edges and a double-stitched seal. This system, along with the overlapping double zipper, prevents the bag from bursting due to milk expansion during freezing and ensures not a single drop will leak, even if the bag is placed completely flat in the freezer.
• Pre-sterilized and toxin-free: Ready to use right out of the carton! Each pouch is pre-sterilized according to strict medical and industrial standards, and is 100% free of harmful chemicals such as BPA, BPS, PVC, phthalates and latex, to keep the milk pure and rich in its natural nutrients.
• Space-saving design (standing or flat): Equipped with a flexible, expandable base that allows the bag to stand firmly on refrigerator shelves for easier tracking, or lie completely flat in the freezer to build organized, space-saving milk blocks.
• Precise markings and a dedicated writing area: It features very clear and precise measurement indicators (in milliliters and ounces), along with a matte, smudge-resistant writing pad, for easily recording the name, date and time of pumping, and the exact quantity.
• How to prepare and store safely (step by step):
  Filling: Carefully open the double-zippered top without inserting your fingers. Pour freshly expressed milk up to the maximum fill line, then gently squeeze to release excess air.
• Closing: Run your fingers firmly along the double zipper track until you hear or feel it close and fit perfectly.
• Recording and Storage: Write the date, time, and ounces in the label area, then place the bag flat in the freezer for quick and consistent freezing.
• Thawing and Checking: Thaw the sachet in warm water (do not use a microwave). Watch the indicator on the bottom until it turns from purple to blue to ensure it is at the ideal and safe temperature for your baby, then cut the sachet along the cut line and pour it into the bottle