Do you need a SCOBY to make kombucha? (2024)

The pellicle on top of kombucha that we call a SCOBY is synonymous with home brewing…but do you actually need a SCOBY to make kombucha? The answer may surprise you.

Do you need a SCOBY to make kombucha? (1)

In virtually any homemade kombucha recipe on the web, you’ll find three essential ingredients: sweet tea, starter kombucha, and a SCOBY (a.k.a. pellicle).

But as I’ve fallen deeper into the world of home brewing (specifically on the subreddit /r/Kombucha/), I’ve come across a way of brewing that has blown my mind…brewing kombucha without a SCOBY.

While many redditors seem to successfully brew kombucha without a SCOBY, the collective internet still seems to think you need one as an integral part of the kombucha equation.

So do you actually need a SCOBY to make kombucha? The short answer: yea, sort of.

Do you need a SCOBY to make kombucha? (2)

What is a SCOBY?

SCOBY is an acronym that stands for Symbiotic Culture Of Bacteria and Yeast.

While the pellicle on top of the kombucha has come to be known as a SCOBY, technically the starter tea is the SCOBY, and the pellicle is simply the pellicle. Are you confused yet?

But because 90% of people think that the pellicle is the SCOBY, that’s just what we call it to prevent further confusion!

The SCOBY/pellicle mainly consists of cellulose, a natural bi-product of the bacteria, along with some living bacteria and yeasts. But if most of the SCOBY/pellicle is simply cellulose, why do we need it for brewing kombucha? Can’t we just kickstart the fermentation with starter tea?

Do you need a SCOBY to make kombucha? (3)

Putting scoby-less kombucha to the test

Driven by curiosity (and by the hundreds of Redditors who swear you don’t need a SCOBY/pellicle), I put my kombucha to the test.

I prepared two jars of sweet tea, adding starter tea (kombucha) to each. In one jar I added a SCOBY/pellicle; in the other I didn’t. Then I simply let them ferment for about two weeks and tasted the resulting batches of kombucha.

The kombucha that was fermented with the SCOBY was notably more acidic and slightly more carbonated, while the kombucha without the SCOBY was still a bit sweet. While the SCOBY-less kombucha had fermented, it had done so at a much slower rate.

The takeaway? You can make kombucha without a SCOBY, but it will take longer and will not be as naturally carbonated.

Do you need a SCOBY to make kombucha? (4)

Benefits of brewing kombucha with a SCOBY

So while you can get away with brewing kombucha without a SCOBY/pellicle, there are a few reasons why I still prefer to use one when brewing kombucha:

More living bacteria and yeast: The starter tea contains most of the living bacteria and yeast that will kickstart the fermentation, but there are some present in the SCOBY/pellicle as well which are useful to powering the reaction.

Protection: The tough cellulose structure acts as a natural barrier to protect the kombucha from contaminants, like outside bacteria, dust, or fruit flies.

Carbonation: The SCOBY/pellicle also creates a loose seal on top of the kombucha, which results in some natural carbonation.

Indication of health: Potential mold or overgrowths of yeast will show up on the SCOBY/pellicle first, indicating if your kombucha is safe to drink.

Grow your own SCOBY

With all of that said, you do not need to buy a SCOBY to begin brewing kombucha. You simply need kombucha to act as the starter tea, then let that produce a SCOBY over the course of a few weeks. Learn how to make your own SCOBY here. Happy brewing!

Do you need a SCOBY to make kombucha? (5)
Do you need a SCOBY to make kombucha? (2024)

FAQs

Do you need a SCOBY to make kombucha? ›

You can actually make kombucha without a SCOBY, but it can take up to three times as long and sometimes people have problems. Part of the job of the SCOBY is giving added bacteria while it ferments, protecting the tea, and keeping it filled with plenty of good bacteria and good yeasts.

Can you make kombucha without a SCOBY? ›

You can actually make kombucha without a SCOBY, but it can take up to three times as long and sometimes people have problems. Part of the job of the SCOBY is giving added bacteria while it ferments, protecting the tea, and keeping it filled with plenty of good bacteria and good yeasts.

Is a SCOBY necessary? ›

Part of the job of the scoby is to protect the kombucha while it ferments. This means that a jar of kombucha without a scoby is vulnerable to any bacteria, good or bad, that's floating around the environment.

Can I use store-bought kombucha as a starter? ›

For your starter bottle of store-bought Kombucha, choose an unflavored bottle of raw, unpasteurized brew. And if at all possible, find one with strands of culture floating in the bottle.

Can you make a SCOBY from scratch? ›

To make a SCOBY from scratch, make a 250g mug of tea and add 2 tbsp sugar. Ensure you remove the tea bag. Cover your mug of sweetened tea with a cloth, making sure it's secure, and leave at room temperature for 1 month. After this time, you should see a thin whitish film forming on top.

What can I substitute for SCOBY? ›

If you're looking for a comparably funky substitute, try rejuvelac. Rejuvelac is a fermented beverage like kombucha, but it's made with grains instead of a SCOBY. Rinse ½ cup grains like wheat berries, rye, quinoa, or buckwheat, and place them in a clean 1-quart glass jar.

What is the starter for kombucha? ›

Kombucha Starter Tea” is raw, healthy, aged kombucha that contains the living bacteria and yeast needed to brew kombucha. This liquid kombucha culture is usually taken from a previous batch of kombucha and is then used to kick start a new batch of kombucha, hence the name starter tea.

What is a scooby for kombucha? ›

A SCOBY is a cellulose mat that houses the bacteria and yeast cultures that turn sweet tea into kombucha. A new or “baby” SCOBY is produced each time you make kombucha, and the SCOBY also helps turn sweet tea into more kombucha. It's basically the means through which kombucha replicates itself.

How to know if homemade kombucha is bad? ›

Kombucha mold colors can vary, so it's important to look for other signs of mold as well. If you see any discoloration or spores, or notice an odd smell (not normal kombucha vinegar-like smell), these are all signs that your kombucha has gone bad and is no longer safe to drink.

What is the lifespan of a SCOBY? ›

The scoby will then go dormant and can be kept for up to 6 months. However, we've already seen scobys that had been forgotten for over a year in a corner of the fridge come back to life without any problem.

Is it OK to use flavored kombucha as a starter? ›

This might be controversial for some home brewers who like to use flavored teas or herbal infusions during first fermentation. But most flavorings (even if they're “natural”) can degrade and weaken your SCOBY over time.

How long is too long for first fermentation of kombucha? ›

Kombucha can be brewed from 7 to 30 days. A longer brewing time results in less sugar and a more vinegary-flavored beverage. A shorter brew will give a more fruity sweet drink.

Can I drink first fermentation kombucha? ›

Another quick note on “doneness” — after around 5 days in the vessel, the brew is ready to drink as-is. It'll already be inoculated with that great, live bacteria. Some people like to drink kombucha right after F1, and that's totally fine. You do not need to flavor and bottle your kombucha before you drink it.

Can you make kombucha without a SCOBY or starter? ›

Can I make kombucha without a starter tea? A. Yes, you can use an equal portion of distilled white vinegar in place of starter tea. Alternatively you may use bottled raw, unflavored kombucha tea, which can be purchased at many health food and grocery stores.

Can I use regular tea bags for kombucha? ›

Black tea is considered best as it contains the nutrients that the scoby likes. It can produce quite a full, fruity flavour but many people prefer to do a mix of teas such as half black and half green or white tea. Either teabags or loose tea can be used. Tea that has added oils such as Earl Grey should be avoided.

Can a SCOBY be cut in half? ›

This is fine if they're getting too large or if you'd like to split them up to move some to a SCOBY hotel/share with a friend. You can't hurt your SCOBY by ripping it or cutting it. Its shape doesn't matter since new ones will always take the shape of the surface of whatever container you place it in.

Is vinegar SCOBY the same as kombucha? ›

Although they look similar, kombucha and vinegar mothers (scobys) are not identical or interchangeable. The kombucha scoby contains bacteria and yeast adapted to the fermentation of sweet tea. It carries out two fermentations simultaneously: Fermentation of sugar into alcohol (thanks to the yeast)

Do you need the pellicle to make kombucha? ›

Without including the pellicle from your previous batch, it may be more difficult to achieve the desired fermentation and produce high-quality kombucha. So do you really need to include a pellicle when making a new brew? In short, yes!!!

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