Bottle-feeding: When to change nipples and bottles?

Check bottle nipples regularly, at least every two to three months for the following signs of wear and tear:
Milk flow : Liquid/milk should flow steadily out of the nipple, if it is Rapid discharge means the hole is too large and you should change the nipple. Discolored nipples. This could be a sign that the nipples are deteriorating. Nipple thinning: This is an early sign that the nipple is softening and uncertain. To check the firmness of the nipple, pull firmly on the breast. After pulling, the nipple should recover back to its original shape. If not, then it's time to remove the nipple and replace it with a new one. The nipple is sticky or bulging. This is also a sign that the nipple may be in need of replacement. Cracked, torn, or broken nipples: Pieces of the nipple can break off and become a danger to the baby because the pieces can choke the baby.

You should change the baby's bottle if you notice the following signs:
The bottle has cracks, crumbs or breaks. Once a bottle is cracked or broken, your baby can cut, clamp or injure himself. This is especially dangerous if you are using a glass bottle. And remember, if you use a bottle with a disposable liner, you should dispose of the liner after each use.

3.1 Shelf life of baby bottles In general, a milk bottle usually has a shelf life of 3 years. Before using the bottle to be sterilized, mix the milk with warm or boiling water.
The numbers indicated on the bottle are blurred, the jar has deformation such as distortion, cracks, the bottle is more opaque, not as clear as the original, or has many scratches. Those are all implicit signs that it's time for a new bottle of milk.
In addition, it should be noted:
White, clear or milky milk bottles, with a heat resistance of 100 degrees Celsius. This type of bottle should be used for no more than 6 months, in case the bottle has scratches, it should be replaced. 6 months before.

Tea color or cockroach color milk bottles are heat resistant at 180 degrees Celsius. This type of bottle has a shelf life of usually 2 years, but if there are damage or scratches, it should be replaced before 2 years. 3.2 Shelf life of nipples On average, a pacifier only has a shelf life of 2-3 months and needs to be changed to suit each age of the baby.
If you notice that the nipple has symptoms such as: The nipple is bulging, the rubber part becomes softer than usual, the color changes (for example, the color is lighter), it means the nipple has a problem. It's time to get a new pacifier for your baby.
Rubber nipples are heat resistant at around 100c, can be used within 3 months and should be changed every 2-3 months. Silicone nipples have good elasticity and are more durable than rubber nipples. heat resistance is 120c, on average every 3 months should be changed. In the process of taking care of children who need consultation and examination, you can take your child to the Pediatrics Department at Vinmec General Hospital for advice and examination by experts. Here, based on the diagnosis results, the doctor will have a treatment method for each specific case to bring the best effect.