
Yes. Kombucha contains caffeine, with approximately 8-14mg per 8oz (237ml) serving.
If you're monitoring your caffeine intake or are sensitive to the effects of this naturally occurring substance, it's important to understand the caffeine content in kombucha.
In this article, you'll learn exactly what kombucha is, what factors affect its caffeine levels and discover caffeine-free alternatives like Cosmic Hue that still deliver powerful gut health benefits.
What is kombucha?
Kombucha is a fermented tea beverage with ancient origins dating back to China approximately 2,000 years ago. This fizzy, tangy drink has gained immense popularity in recent years due to its reported health benefits.
The brewing process involves combining tea, sugar, and a SCOBY (Symbiotic Culture Of Bacteria And Yeast). During fermentation, the SCOBY transforms the sweet tea into a probiotic-rich beverage with a distinctive flavour profile.
Since kombucha is made from tea, it naturally contains some caffeine, though less than the tea it originates from. This is because the SCOBY metabolises some of the caffeine during the fermentation process.
Many people drink kombucha for its potential gut health benefits from probiotics, but it's worth noting that caffeine can sometimes have the opposite effect on your gut and cause issues for those sensitive to caffeine.
This is particularly important for anyone with digestive sensitivities, such as many of our customers who drink Cosmic Hue as a caffeine-free alternative.
Caffeine content in kombucha
Kombucha contains approximately 8-14mg of caffeine per 8oz (237ml) serving. This caffeine content varies based on several key factors.
First, the type of tea used as the base significantly affects caffeine levels. Black tea naturally contains more caffeine than green or white tea varieties, directly impacting the finished kombucha.
Second, steeping time during the initial brewing process matters. Longer steeping times extract more caffeine from the tea leaves before fermentation even begins.
Finally, fermentation duration plays a crucial role. The longer the SCOBY ferments the tea, the more time it has to metabolise the caffeine, resulting in lower levels of caffeine in the final product.
To give you a better idea of how the caffeine content in kombucha compares to other popular drinks, we created a comparison table below.

Caffeine-free kombucha alternatives
Cosmic Hue
Fifth Ray's Cosmic Hue offers a caffeine-free plant tea specifically designed to support gut health. This innovative alternative contains a blend of powerful gut-supporting ingredients including marshmallow root, cat's claw, and ashwagandha.
Unlike traditional kombucha, Cosmic Hue avoids the caffeine that can potentially irritate sensitive digestive systems. The formula draws from Manny's personal journey with gut health issues, incorporating plants that helped him overcome Crohn's disease and ulcerative colitis.
Other probiotic drinks on the market
The growing interest in gut health has led to an expansion of probiotic drink options beyond kombucha. Two traditional fermented beverages gaining popularity as caffeine-free alternatives are water kefir and kvass.
When exploring these options, be mindful of added sugars in commercial versions. Many manufacturers add sweeteners to improve palatability.
Conclusion
Kombucha does contain caffeine, but in relatively small amounts, typically 8-14mg per 8oz serving.
This is significantly less than coffee, energy drinks, or even regular tea. However, for those monitoring caffeine intake due to sensitivities or health concerns, these lower levels might still be relevant.
If you are looking for a caffeine-free drink that supports your digestive health, then join thousands of happy customers and try Cosmic Hue.