How long does kombucha last after opening?

In this brief guide, we are going to answer the question” How long does kombucha last after opening?” with an in-depth analysis of the storage time of opened and unopened bottled kombucha and the method of storing it. Moreover, we are going to highlight the health benefits and health risks of kombucha.

How long does kombucha last after opening?

Kombucha lasts for one week after opening. The exact answer to this question depends on when it was opened and how it was stored. Once you open it, you should immediately drink it.

What is kombucha?

Kombucha is known as fermented tea, which is made from sweetened green or black tea. The presence of acetic acid, gasses, and trace amounts of alcohol make kombucha carbonated. Kombucha is also known as “Mushroom tea” because of the formation of a mushroom-like film on the surface of the liquid.

Is kombucha healthy?

Yes, kombucha is healthy. It has many health benefits such as:

  • It helps your digestion, it is effective in the treatment of all types of digestive problems
  • Helps to remove toxins from your body
  • Gives you energy
  • It prevents you from hair loss
  • Helps to improve your immune system
  • Helps you in losing weight
  • Prevents you from high blood pressure, cancer, and heart diseases
  • As kombucha is a fermented tea, the process of fermentation produces probiotics which help to strengthen your immune system and also help in diarrhea and irritable bowel syndrome(IBS).
  • Kombucha contains lactic acid bacteria which promote the production of good bacteria in the gut.

Kombucha made from green tea:

If green tea is included in the formation of kombucha, it will produce bioactive compounds like polyphenols which act as antioxidants and protect you from cell damage. These antioxidants will help you in the reduction of inflammation in the body.

Green tea helps you in burning fats and protects you from heart diseases.

Kombucha health risks:

  • When you make kombucha, bacteria grows in its liquid. When kombucha is not prepared properly, harmful bacteria such as mold can grow in it.
  • It becomes the reason for many diseases such as liver, lactic acidosis, allergic reactions, and nausea.

How to store kombucha?

Some people say that you can store kombucha at room temperature for half a year without causing health risks. Some people say that you can store it properly in a refrigerator.

At room temperature:

When you store kombucha at room temperature, the heat coming from the sun will affect its quality. The microbial organisms swell at room temperature. In this way, the amount of acid and carbon dioxide will increase and change the taste of kombucha like vinegar. 

The active cultures in kombucha become more active at room temperature. Excess carbonation converts it into a tart-like taste.

In the fridge:

To maintain active cultures present in kombucha, it is necessary to store it in the fridge. Kombucha needs a specific temperature range. If you are not refrigerating it, then keep it away from sunlight and heat.

When you have homemade kombucha, you should always store it in the fridge.

How long does bottled kombucha last?

You can store bottled kombucha for many months, like 6 to 8 months. Because kombucha contains good bacteria, you can safely store it in the fridge. In the fridge, the fermentation process slows down. But if you keep it outside, the process of fermentation will continue and make kombucha more acidic.

How long does an opened bottled kombucha last?

An opened bottled kombucha can last for only 1 or  2 days. Once you have opened the bottle of kombucha it will lose carbonation. When you open the bottle, kombucha will react with air and the shelf life of kombucha will decrease.

How to know that kombucha has gone bad?

Here are some tips for determining if kombucha has gone bad or not.


If fizzy-colored spots are seen on the surface of kombucha, then it has gone bad just discard the beverage.


Floaties are known as living cultures and their presence in kombucha is normal. These are naturally produced strands of yeast.

Vinegary taste:

Tart-like taste in kombucha occurs due to excessive fermentation. You can drink it but the taste is not very good. If its taste is too much vinegar, then you should not drink it. If you are confused about kombucha feel free to drink it to taste it.

Here,  you can find information about kombucha, its nutritional value, and its shelf life.


In this brief guide, we answered the question” how long does kombucha last after opening?” with an in-depth analysis of the storage time of opened and unopened kombucha. Moreover, we discussed the health benefits and risks of kombucha.


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