Can kefir go bad?

In this short article, we will provide an answer to the question “can kefir go bad?”, its storage and health benefits.

Can kefir go bad?

Yes, kefir can go bad. Kefir should be consumed within two to three weeks, or until the expiry date printed on the package is reached, whichever comes first. Once that time has elapsed, the flavor of the product will most likely become too overpowering to tolerate. In most cases, it takes between five and seven days, depending on your personal preferences.

How Shall The Kefir Be Managed?

Kefir should be stored in the refrigerator. Refrigeration not only helps to keep food safe for human consumption, but it also helps to keep fermentation at bay. Furthermore, as previously stated, the fermentation process occurs gradually, resulting in extremely long shelf life.

You should double-check that the leftovers are properly sealed once you’ve opened the container. The fact that the kefir is packed in a bottle or a resealable carton means that this is not an issue. Unless the container can be resealed, it is usually preferable to pour the leftovers into a mason jar, especially if you want to keep them for a long time.

Can Kefir Be Stored In The Freezer?

Kefir, like yogurt, is difficult to store in the freezer.

When the whole container is frozen, the solids separate from the liquid when the container is thawed. While swirling and combining it does assist, it does not fully restore its original consistency.

Freeze it in an ice cube tray to reduce the effect on the environment ([LW]). Once you’ve filled half of the tray with liquid, freeze the cubes, and then transfer them to a freezer bag once they’ve solidified fully. After freezing, you will almost definitely need to mix it again, but the results should be better.

What Is the Best Way to Tell if My Kefir Is Stale?

Kefir spoilage is indicated by the presence of the following symptoms:

  • Leaving the kefir out in the sun for an extended time may cause it to become a light yellow color.
  • A visible sign is the growth of mold on the surface of the water. Depending on your preference, it may be as basic as a few orange and pink dots or more subtle.
  • While kefir often has a little sour fragrance, reject the milk if the smell was faint when the container was first opened but has now grown unpleasant to the taste.
  • Generally speaking, if the milk seems lumpy and difficult to pour, it has almost certainly beyond its expiry date.
  • There is a distinct separation of the liquids that may be seen. Souring occurs when a liquid seems to be water yet includes solid particles, despite the appearance of being water. It should have a consistency that is similar to buttermilk inconsistency.
  • Kefir purchased from a store has a creamy, uniform texture. It is wonderful to consume kefir in its most natural form. Some kefir producers, on the other hand, provide a variety of flavors to choose from.
Bottled Kefir Milk lasts for2 hours2 – 3 Weeks past the printed date2 – 3 Months
Homemade Kefir Milk lasts for1 – 2 Days2 – 3 Weeks2 – 3 Months
Kefir Grains last forIndefinitelyIndefinitelyIndefinitely
Kefir Starter Powder lasts for2 – 7 Uses2 – 7 Uses2 – 3 Months

The Health Advantages of Kefir

Protein, calcium, phosphorus, vitamin B12, vitamin B2, magnesium, and a trace amount of vitamin D are all included in the kefir. When compared to yogurt, it contains greater concentrations of probiotics, which may aid with digestion and weight management.

Additionally, kefir has antibacterial properties that are beneficial in the treatment of some illnesses. Additionally, it has been shown that kefir is beneficial to bone health and may help to decrease the occurrence of osteoporosis.

You should consider kefir for digestive problems since it may help you in re-establishing a healthy balance of important bacteria in your stomach, which can be beneficial if you suffer from them.

Few characteristics of Kefir

  • Kefir is very easy to make at home and has a much longer shelf life than conventional kefir. Here’s a recipe to get you started on your journey to reaping the benefits of kefir’s probiotic properties.
  • While kefir has a very limited shelf life, there are a few methods for extending its shelf life. Always store it in the refrigerator for short periods or in the freezer for prolonged periods.
  • It is preferable to include kefir into cooked meals rather than freezing it since freezing kefir may impair its quality.
  • Homemade kefir, on the other hand, may be stored in the refrigerator for considerably longer periods.
  • In general, look for signs of degradation in your kefir’s appearance, texture, fragrance, and flavor to see whether it’s deteriorating.


In this short article, we provided an answer to the question “can kefir go bad?”, its storage and health benefits.


Hi, I am Charlotte, I love cooking and in my previous life, I was a chef. I bring some of my experience to the recipes on this hub and answer your food questions.