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How Long Does Kombucha Last? Does It Go Bad?

Do you love the unique flavor and potential health benefits of kombucha, but aren’t sure how long it lasts?

Or maybe even if it goes bad? If so, you’re not alone!

As more people become aware of the advantages of drinking kombucha, they also often have questions about its shelf life.

That’s why I’m excited to share my research on this topic — from expiration dates to what happens when it spoils — in an effort to help you better understand everything that is involved with enjoying this fermented beverage safely.

Read on to find out all there is know about how long kombucha really lasts and whether or not it does go bad!

What’s Kombucha?

Kombucha is a fermented beverage made with tea, sugar, bacteria, and yeast.

It’s been around for centuries and has become increasingly popular in recent years.

Though it’s sometimes called “mushroom tea,” kombucha is actually made without mushrooms.

The fermentation process begins with sweetened tea that’s been inoculated with a culture of bacteria and yeast.

This mixture is then left to ferment for a period of time, typically one to two weeks.

During fermentation, the bacteria and yeast convert the sugars into alcohols and acids.

This makes kombucha slightly alcoholic and tart-tasting.

After fermentation, the kombucha can be bottled and enjoyed as is or flavored with fruits, herbs, or spices.

It’s also possible to continue fermenting kombucha to make it more alcoholic.

However, most commercial kombuchas have less than 0.

5% alcohol by volume and are considered non-alcoholic beverages.

Kombucha is often touted as a health drink because it contains probiotic bacteria that may promote gut health.

It’s also low in calories and sugar compared to other sugary drinks like soda.

However, there is no scientific evidence to support these claims.

If you’re interested in trying kombucha, look for it in the refrigerated section of your local grocery store or health food store.

You can also find it online or make your own at home.

How Long Does Kombucha Last?

Kombucha is a fermented drink made from sweetened black tea.

It has been around for centuries and is thought to have many health benefits.

Kombucha is relatively easy to make at home and will last for several weeks, if stored properly.

The fermentation process of kombucha creates beneficial bacteria and yeasts, which are then transferred to the drinker when they consume it.

This can help to improve gut health and digestion.

Kombucha is also rich in vitamins, minerals and antioxidants, which can help boost the immune system.

To make kombucha, sweetened black tea is combined with a SCOBY (symbiotic colony of bacteria and yeast).

The SCOBY feeds on the sugar in the tea, which starts the fermentation process.

The fermentation process takes around 7-10 days, after which the kombucha is ready to drink.

If you’ve made kombucha at home, it’s important to store it properly to prevent it from going bad.

Kombucha should be stored in a clean, airtight container in the fridge.

It will last for several weeks – up to a month – when stored this way.

You may notice that the taste of your kombucha changes slightly over time; this is normal and doesn’t mean that it has gone bad.

How To Store Kombucha?

Kombucha can last for several weeks if stored properly.

The key is to keep it refrigerated and in an airtight container.

If kombucha is stored at room temperature, it will start to ferment and turn into alcohol.

To store kombucha, pour it into a clean glass jar with a tight-fitting lid.

Make sure the jar is completely clean and dry before adding the kombucha.

Otherwise, the kombucha could become contaminated with bacteria or mold.

Refrigerate the kombucha immediately after adding it to the jar.

Kombucha will continue to ferment in the fridge, but at a much slower rate than at room temperature.

The fermentation process will also produce carbon dioxide, so make sure to open the jar occasionally to release the gas build-up.

Kombucha will start to taste sour after a few weeks in the fridge.

This is normal and means that the fermentation process is still happening.

Once kombucha reaches your desired level of tartness, you can stop storing it in the fridge and enjoy it at room temperature.

How Can You Tell If Kombucha is Bad?

The answer to this question is not as simple as it may seem.

There are a few key things you can look for, but ultimately, it is up to your own judgement to determine if kombucha has gone bad.

The first thing you should do is check the expiration date.

If the kombucha is past its expiration date, it is probably best to throw it out.

However, if the kombucha is within its expiration date, there are still a few things you should check.

The next thing you should look at is the appearance of the kombucha.

If the kombucha is cloudy or has sediment at the bottom of the bottle, this could be a sign that it has gone bad.

The kombucha should also be a light brown color; if it is darker than this, it may be an indication that it has gone bad.

Finally, you should smell the kombucha before drinking it.

If it smells sour or vinegary, this is another sign that it has gone bad and should not be consumed.

If you are unsure whether or not the kombucha is still good, it is always better to err on the side of caution and throw it out.

What are The Health Benefits Of Kombucha?

The health benefits of kombucha are well-documented.

This fermented tea has been shown to boost the immune system, improve digestion, and even fight cancer.

But how does kombucha work? And what are the specific health benefits of this powerful beverage?

Kombucha is made by fermenting black or green tea with a culture of bacteria and yeast.

This fermentation process creates beneficial probiotics that can help improve gut health.

Probiotics are live microorganisms that are similar to the good bacteria that naturally live in your gut.

They help crowd out bad bacteria and support a healthy balance of gut flora.

Kombucha is also rich in antioxidants, which are compounds that scavenge harmful toxins and byproducts that can damage cells.

These antioxidants can help protect cells from damage caused by inflammation, stress, and free radicals.

Studies have shown that kombucha can help boost the immune system, improve digestion, fight cancer, and more.

If you’re looking for a delicious way to improve your health, kombucha is a great choice.


Overall, kombucha is a relatively long-lasting beverage.

Homemade kombucha can last for up to two weeks, while store-bought kombucha can last for up to four weeks.

To extend the shelf life of kombucha, be sure to store it in a cool, dark place.

If kombucha is exposed to light or heat, it will spoil more quickly.

You can tell if kombucha has gone bad if it has a sour or vinegary smell, or if the taste is unpleasant.

If you’re unsure, it’s always best to err on the side of caution and throw it out.

Although kombucha is relatively shelf-stable, it’s important to remember that it is a living beverage.

For the best flavor and health benefits, be sure to enjoy kombucha while it’s fresh.

How Long Does Kombucha Last? Does It Go Bad?

5 from 1 vote
Prep Time 15 minutes
Cook Time 15 minutes
Total Time 30 minutes
Course Shelf Life
Servings 1 Serving


  • Kombucha
  • Air-tight containers or Ziplock bags
  • Labels and markers


  • Store your product in an labelled container in a cool, dark place like the pantry or fridge.
  • If your food is frozen, allow it to thaw in the fridge before cooking.
  • Make sure to look for signs that your food has gone bad before eating it.
Tried this recipe?Let us know how it was!