After opening the package, if the milk is stored for a long time, it will deteriorate and can not be eaten. It is a pity to pour it. Don't worry, the expired milk is still valuable. Let's follow and have a look.
It's better not to drink expired milk
Generally, the milk sold in the market has a way back for the majority of consumers in the formulation of the shelf life. If you buy a bottle of milk with a shelf life of 7 days, then its actual shelf life may be 10 days, and the milk can't really break down suddenly once it reaches the shelf life.
Therefore, if the milk has reached the expiration date, but judging from the sensory evaluation, the milk can still be safely drunk. If after four or five days, although there is no deterioration, but there is little nutritional value left, it is best not to drink at this time.
When the milk is heated, the milk with a layer of milk fat on the surface is fresh milk, and the old milk and deteriorated milk appear on the surface of tofu flower. If the taste is bitter, sour or has other peculiar smell, it indicates that the milk has deteriorated. This identification method is suitable for fresh milk, high calcium milk and flavored milk beverage, while yogurt and lactobacillus beverage should not be heated.
Don't throw the expired milk. It's very useful
1. Wipe the composite wood floor
Expired sour milk should be diluted with water, and then sprinkled on the composite wood floor with a mop to wipe. Because lactic acid is a natural detergent. In addition, it can not only protect the floor from abrasion, but also protect the floor from scratch.
When scrubbing the wooden floor, first pour the expired milk into the washbasin, and then dilute it with twice the water, and then wet the dishcloth and wring it dry to wipe the floor. If the amount of expired milk is more, you can wipe it with milk once a week. The grease in the milk also uses the floor to maintain the original color, which is not easy to decolorize, change color, and is not easy to make the floor deformed.
2. Shoeshine to prevent dry crack
Remove the dirt on the vamp, dip the expired milk with gauze and evenly smear it on the vamp. After drying, wipe it with dry cloth. The vamp can be as bright as new, and it also has the function of preventing the leather surface from cracking.
3. Wipe leather furniture
You can use expired milk to wipe leather furniture to restore its luster and repair tiny cracks.
4. Remove ink marks on clothes
Clean the clothes with water, then pour in the expired sour milk and gently rub them to remove the ink marks on the clothes.
5. Remove oil stains
After repairing the car, your hands will be stained with oil and dust and become very dirty. At this time, the oats and milk mixed into paste, wipe hands, not only can remove dirt, but also can moisten hands, let hands more soft, delicate.
6. Remove rust stains
The acid rotten milk (or add some vinegar to the milk) is used to soak the silver ware, which can remove the rust spots and stains on the surface of the silver ware. After soaking, rinse and dry. It can also be used to Polish furniture. While deeply moistening the wood, its acid composition can remove dust and dirt, and the effect is very good.
7. Repair porcelain cracks
If there are tiny cracks in the porcelain, put it in a pot, soak it in milk, heat and boil, then turn down the heat and simmer for 45 minutes. The protein in the milk will combine with the clay in the porcelain to repair the cracks.
8. Hair care and lubrication
Add water to the expired yogurt and dilute it a little, and then spread it evenly on the washed wet hair like hair conditioner. After a little massage, the hair will be lubricated and glossy.
9. make yogurt mask
Yogurt contains a large amount of lactic acid, mild action, and safe and reliable. Yogurt mask is the use of lactic acid to play the role of peeling mask, daily use will make the skin tender and delicate. It's also very simple. It's just a little work.
Materials: a cup of yogurt, flour, a small bowl.
Practice: 1, the right amount of yogurt and flour in the small bowl, mix well into thick yogurt paste. (do not spread too thin, otherwise you can not smear the mask) 2, evenly applied to the whole face, after 10~15 minutes, wash with warm water.
Efficacy: yogurt mask can be used as a face wash. It is not necessary to purposely clean the face before and after use. After 4-5 times of use, the skin will have a new feeling.
10. Fertilize the plants
If the expired milk has obvious sour smell, you can use it to water the flowers. You can dig a small hole in the middle of the flower soil and bury the milk in it, so that there will be no bad smell. It should be noted that milk can not be too much, about a month can be used for the second time.
