HELP & FAQ

Kombucha is an ancient fermented tea that has been made for the past two-thousand years. Some believe it started in Japan, others believe it started in Siberia… Well, wherever it started, it is a beautiful gift. It’s made with tea, sugar and fermented with a SCOBY (symbiotic culture of bacteria and yeast). The culture is made mostly of cellulose and looks a bit like a jellyfish. In some places ( i.e. Slavic speaking countries) they call the culture a “mushroom”, but it’s not.  The scoby forms a seal and the tea below it transforms from a plain sweet tea to a sparkling tea that is literally full of life.  The fermentation amazingly protects it from any pathogens so there is no need to pasteurize. All the good stuff remains. 

Because kombucha is fermented, it may contains trace amounts of alcohol. To give you perspective, it’s usually less than the amount in a ripe banana. Anything that is fermented has trace amounts of alcohol.  To be considered a non-alcoholic beverage by EFSA standards, it must contain under 1.2% alcohol. ISA’s kombucha is legally considered a “non alcoholic beverage”.  We actually guarantee alcohol levels below 0.5%. 

ISA’s starts with two different kinds of loose-leaf tea. We brew it, add some sugar and when it cools, we add our living culture. And then the magic happens. We let fermentation do the heavy lifting. It slowly transforms into our lovely lively base. Then, depending on the flavor of course, we add just the right amount of cold-pressed fruit and vegetables, rhizomes, fresh herbs and or botanicals - and the fresh squeezed lemon juice. We let it ferment a little longer till the little bubbles are just wild enough. She’s a natural raw beauty. We don’t dilute or kombucha, tweak it or add CO₂ to it. There’s no need. She’s lovely just the way she is. No unnecessary shortcuts or adulterations - just real ingredients, proper fermentation and time.

That’s just nature doing its thing! The sediment is a natural mix of yeast and tiny particles from real tea, fruits, and herbs that settle over time. It’s completely normal in raw, unpasteurized kombucha and a sign of natural fermentation. Nothing to worry about - just part of keeping ISA’s real.

Kombucha contains tea, sugar and our fermented living culture. The SCOBY gives it that signature sweet and sour taste as it
continues to ferment and consume the sugar. Sweet ripe fruit complemented with
fresh squeezed lemon juice further augments the sweet sour profile. 

Kombucha is 100% vegan friendly, as it consists of water, tea, beet sugar, and cold-pressed juices.

ISA’s Kombucha is raw and unpasteurized. The fermentation and subsequent low pH prevents any pathogens from forming.  Pasteurization is not necessary to kill any
bad bacteria because there isn’t any. However, it must remain refrigerated. 

ISA’s Kombucha is never force-carbonated. Our bubbles are created naturally through fermentation alone - smaller, livelier and a little more playful.

No added CO₂. Just real fermentation doing its thing.

ISA’s Kombucha lasts up to six months when kept properly refrigerated.  It technically won’t go “bad” it will just keep fermenting creating a less sweet drink and use up the sugars and possibly become more vinegary.

For the best flavor and sparkle, keep ISA’s refrigerated and drink it as soon as you can. A good rule of thumb is to drink it within two/three days.

ISA is a living, naturally fermented product, variation can and will occur. Warm temps move fermentation along a little faster, while colder temps can slow it way down. Fruits have different fructose levels throughout the year. Think of fruit picked during the season or out of season. Sometimes ginger is incredibly fiery other times more citrusy. Sometimes you can get some incredibly spicy peppers, sometimes they’re a little  more earthy and bland.  Again we do not have powders or purées. We’re working with real whole foods here. 

Of course, if a bottle tastes unusual, we sincerely welcome your feedback at hello@isakombucha.com. Please include where you bought it, the flavor and the best-before date.  

ISA is raw and unpasteurised, naturally fermented in small batches in glass, and made with real ingredients like fresh ginger, basil, lemon and cayenne. We cold-press our ingredients and let each bottle develop its own natural bubbles - no added CO₂. The result? A crisp, refreshing kombucha without the overly sour, vinegary taste.

ISA is available in all dm and Mercator stores across Slovenia, as well as selected E.Leclerc and SPAR locations. You can also find ISA at selected bars, restaurants and other venues throughout Slovenia.

We love a good celebration. Whether it’s a wedding, birthday, corporate event or something in between, we’d love to be part of it. Drop us a line at hello@isakombucha.com and we’ll help you put something special together.

We’d love to work with you. Whether you’re a retailer, restaurant, hotel or wellness space, get in touch at hello@isakombucha.com and we’ll take it from there.

We're always keeping an eye on your order even after it leaves our warehouse. If your order hasn't moved in a few days, we'll reach out to the carrier handling your order and keep you updated throughout the process. If you haven't heard from us in a while, please feel free to reach out: hello@isakombucha.com. 

At this stage we are NOT able to take bottles back for reuse.

We deliver ISA’s straight to your door, with free delivery across Slovenia. We also deliver to selected areas in Croatia (Zagreb and Rijeka) and Italy (Trieste).

Due to the perishable nature of our kombucha and for food safety reasons, we’re unable to accept returns. If there’s an issue with your order, please email us at orders@isakombucha.com and we’ll be happy to help.

Choose Subscribe & Save when adding ISA’s to your cart and enjoy 25% off every order. Your favorite kombucha will arrive automatically at your chosen frequency. You can change, pause, or skip deliveries anytime and cancel after your first two deliveries.

We’re flexible. Simply log in to your ISA account using the same email address you used at checkout. From there, you can manage your subscription, including changing the quantity or delivery frequency, skipping an order or cancelling anytime.

Of course! Heading away or just need a little break? Log in to your ISA account to pause, skip or make changes to your subscription anytime.

And if you’re travelling within Slovenia, you can always update your delivery address and have your ISA follow you.

Of course. Log in to your ISA’s account and select “Manage Subscriptions” to cancel. If you need a hand, email hello@isakombucha.com.