How long after opening the milk powder can it not be drunk to judge the deterioration of the milk powder

Everyone must have drunk milk powder. Milk powder is a very popular drink in modern life. Many people have the habit of drinking milk every day. Generally, we need to drink the milk powder as soon as possible after buying it and opening it. Drinking it if it is spoiled or expired will cause great harm to the body.

Generally speaking, if the milk powder is not finished within one month (limited to bottled milk powder) after opening, do not give it to the baby. After opening, it will be exposed to oxygen and some external environmental influences, which will have a little impact on the quality of the milk powder. Adults can eat milk powder that is more than 21 days and less than 60 days old, but it is best not to eat it if it is opened for more than two months. Some milk powder cans will also remind you not to give it to babies within 30 days after opening. There are markings on the milk powder, and mothers can also take a look. Experts say that infant milk powder is rich in nutrition and high in protein, and rich protein and nutrition are the hotbeds for bacterial growth and reproduction, and it is also easy to attract insects. Consumers must pay attention to the storage of milk powder after opening. In order to avoid contamination and deterioration of milk powder, special attention should be paid to the storage process of milk powder after opening. It is not suitable to store milk powder in the refrigerator after opening. Because of repeated access, the temperature difference and humidity difference inside and outside the refrigerator are very likely to cause baby milk powder to deliquesce, agglomerate and deteriorate. After opening, milk powder can usually be stored at room temperature, away from light, in a dry and cool place. After each use, the canned milk powder must be tightly covered with plastic caps, and the bagged milk powder must be tightly tied. For easy storage and taking of milk powder, it is best to store the bagged milk powder in a clean milk powder can after opening. Wipe the milk powder can with a clean and dry cotton towel before use, and do not wash it with water. After opening, the milk powder must follow the regulations on the use time. Most baby milk powder packaging has clear regulations that the milk powder should be used within one month after opening. After opening, it should be discarded if it exceeds one month.

1. Pinch

Normal milk powder should be loose and soft. If you are not sure whether the milk powder has gone bad, you can scoop out a little with a spoon, put it somewhere else and touch and pinch it with your hands to feel it, but do not put your hands directly into the milk powder bag to feel it, which will contaminate the milk powder. Milk powder will clump when it absorbs moisture. Can it still be eaten? In fact, there are two situations: one is that the clumps break when you pinch them, and have not changed color or taste, then it can still be eaten, but it must be eaten as soon as possible; the other is that the clumps are relatively hard, and the color becomes darker and has a strange smell, indicating that the milk powder has gone bad and cannot be eaten.

2. Smell

Normal milk powder should have a light milky aroma that is not too strong. If the milk powder tastes sour, moldy, or fishy, ​​it means it has gone bad.

3. Look

If there are a large number of insoluble particles or stratification after the milk powder is mixed, and the color becomes seriously darker, it indicates that it has deteriorated.

4. Taste

Normal milk powder also tastes lightly milky, and if DHA is added to the milk powder, it will have a slight fishy smell. But if the milk powder tastes oxidized or has a strong fishy smell, it means it has gone bad.

The temperature is high, and many mothers put milk powder in the refrigerator for fear of spoilage, thinking that this will keep it fresh. In fact, not only is there no scientific basis for doing so, it may also accelerate the caking and deterioration of milk powder. Milk powder is not the same as food or fruit, and it will not deteriorate at low temperatures. On the contrary, due to the large difference in temperature and humidity inside and outside the refrigerator, coupled with frequent daily access, milk powder is more likely to absorb moisture in the air and cause caking and deterioration. The correct storage method is to place milk powder in a dark, clean, dry and cool environment indoors, and try to consume it within 1 month after opening the milk powder. Therefore, mothers do not need to covet small bargains when buying milk powder. In the end, if you can't finish it and throw it away, you will lose more.

1. Prepare and use the formula as soon as possible. For convenience, you can also prepare several bottles of milk at a time, but be sure to cover the prepared milk powder and immediately put it in the refrigerator for storage. Prepared formula milk powder should be used up within 12 hours.

2. If the remaining milk is small, it is best to pour it out. If the remaining amount is large, it can be stored in the refrigerator, but not for too long, it is best to pour it out within 1 hour.

3. After taking out the milk from the refrigerator, it is advisable to heat it thoroughly before drinking. Do not use a microwave to heat the milk, so as to avoid scalding the baby's mouth with partially overheated milk.

4. When preparing milk powder, your hands should be dry to avoid bringing water droplets into the milk powder. This will ensure that the milk powder can be stored longer.

Warm reminder: The refrigerator is not a sterile box. There will also be a lot of bacteria inside, and the milk powder will be contaminated through the gaps after the can is opened. The milk left after the child eats cannot be given to the child again. Even after heating, since the formula milk powder is added with various nutrients, some substances may deteriorate when exposed to high temperatures. Therefore, prepare as much as the child needs to eat, and try not to waste it. In addition, since your child does not need much formula milk powder, it is recommended that you try to buy small packages of milk powder.