Whey is a fermented milk by-product that remains after cheese is made. It is widely used in cooking and cosmetology, as it has many useful properties. Whey contains only 20 kcal per 100 grams. It is rich in proteins, contains a lot of vitamin C and other useful substances. It is also an indispensable component of dough and cold soups, it is used to prepare cosmetic masks and creams. The homemade product is sweeter, and the store-bought one is sour and has a refreshing taste. How to store serum will be discussed in our article.

How long is serum stored in the refrigerator and without it:

  • Without refrigeration, this product will last for a maximum of 2 days.
  • In the refrigerator, the serum can stand for 4-5 days.
  • It can be stored frozen for up to 6 months.

How to store serum

Shop serum

When you buy serum in the store, always pay attention to the production date.

A quality product without preservatives should have a maximum shelf life of 72 hours (3 days) and should not contain extraneous ingredients. The shelf life of serum in the refrigerator in a closed package ends on the date specified by the manufacturer. If you missed it and the product has expired, it can be used for cosmetic purposes.

After opening the package, storage of the serum should be ensured as follows:

  1. pour into a clean glass jar with a tight lid;
  2. put in the refrigerator on the middle shelf;
  3. store at a temperature of 5 °C for up to 3 days.

how to store the serum

Homemade serum

Many housewives prepare this product themselves. It remains after making homemade cheese. The question arises, how and where to store whey from cheese?

Due to the lack of a refrigerator, the best place to preserve the quality and nutritional properties of the product is the cellar. Optimal conditions are observed here – humidity and temperature, no sunlight, which is important to avoid fermentation processes. The time to store homemade serum in the cellar is up to 3-4 days.

If there is no such possibility, then it is possible to store whey on the balcony, at an air temperature not higher than 10 °C, but not lower than zero. To do this, it is poured into a clean opaque container and left for up to 3 days.

At room temperature, the product spoils quickly, but there is a way to keep it fresh a little longer. To do this, the serum is covered with clean gauze so that it sinks into the liquid. Moisture will evaporate from the fabric and thereby cool the contents.

The time that whey from cheese is stored in this way at room temperature is up to 2 days away from direct sunlight. It is best to take the container to the pantry.

In the refrigerator, on the middle shelf, the homemade product will be usable for 3-4 days.

Can it be frozen?

When storing fermented milk products of natural manufacture, vitamin C accumulates in them, which makes them useful for digestion. At a temperature below 0 °C, useful substances and vitamins are destroyed, and the product ceases to be useful. But at the same time, you can freeze the serum. The main thing is not to do it in a glass container, as it will burst when frozen. A plastic bottle (it can be filled no more than 4/5) or ice molds are best. When the product freezes, you can pour the finished cubes into a bag and store in the freezer for up to 6 months.

How to store serum at home