2024 Author: Jasmine Walkman | [email protected]. Last modified: 2023-12-16 08:29
When you buy fresh milk from the store, it has gone through a complex processing process. After being mechanically purified, it is pasteurized at 98 degrees Celsius, whereby the residual microflora dies.
Therefore, purchased milk has a longer shelf life than milk produced and stored at home. The production gives us a greater guarantee of quality and, above all, cleanliness.
However, in rare cases, part of the microflora remains or re-develops. This would happen if the purchased milk is stored in a warm place. Thus, the surviving elements develop and eventually spoil the milk. They are not dangerous.
However, if they have developed, due to too long a period of stay in the refrigerator, and especially if there is a putrid odor and bad appearance, then the milk really should be discarded.
The difference is that while the surviving bacteria in the recently pasteurized milk are mostly "wild" lactic acid from our environment, in the latter case the culprits for spoilage are pathological microorganisms that are dangerous to our health.
When the milk bought from the store, pasteurized and properly stored, within the expiration date of the package, is cut off, but there is no bad smell and taste, but only slightly sour, you can safely not throw it away and use it. From it you can make cottage cheese, make dough, pancakes, toppings and more. The bacteria that develop in it are the ones that normally ferment the milk.
However, it is very important to know that such procedures are not done with homemade milk. Homemade milk, stored for more than 3-4 days in the refrigerator, begins to spoil. And accordingly, it must be discarded.
Store-bought milk can be valid for up to 10 days if stored in the refrigerator. When using it, then close it tightly. It does not even need to be boiled. At home, even if you cook it, you can not be one hundred percent sure that it does not contain bacteria resistant to high temperatures. In this way you kill only the most active part of them.
If you start transferring the purchased milk to your containers, you will infect it with bacteria that normally inhabit the surface of the pots. The same will happen even from the air.
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