Category Archives: Performing Science

Plotting Fall and Winter Flavors!

In parts of the world that these things called “autumn” and “winter” actually happen (or not the SF Bay Area) it is traditionally a time to live off of stored food and things that are below ground, like roots.
So, at our brewery we’re working on new flavors for the colder months.  So far, Licorice root, dandelion root, and nettle root are all we’re working with but if anybody in internet land has an idea or a request don’t be shy, let us know!

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Filed under Delicious Bevs, Nothing is growing in the jars that should be growing in the jars, Performing Science, Things we need

6-Packs of Kombucha Now Available!

We finally have enough kombucha ready to sell some to the public! We have lavender and hibiscus available.
For more info check out:

If you’re a co-op member and haven’t received your monthly kombucha, please email us at bay kombucha at

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Hibiscus is the Flavor of Summer!

We’ve just bottled up our newest batches of hibiscus (pictured), lavender, and tulsi nettle kombucha!
The refreshing and light hibiscus is definitely my favorite right now and if it ever gets hot in San Francisco, it’ll be better than lemonade!

Hibiscus in the brewery.

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Filed under Dear god it is so late how am I doing this, Delicious Bevs, Nothing is growing in the jars that should be growing in the jars, Performing Science, Probiotic Porn

New Kombucha!

So, for the last few months we’ve only been making enough kombucha to serve our current Co-op members.  That’s why there hasn’t been a lot of activity around here, but now we’re in over flow and have some extra!
We currently have 22 ounce bottles of green tea based lavender and black tea based hibiscus flower and 12 ounce six packs of green or black tea based hibiscus and green tea based lavender.  We sell mixed packs so just tell us what you want of each and be sure to check out the Donations, Starter Kits, and Memberships section for more info on our suggested donations.

And always feel free to email your questions to

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We’re Doing It!

Sorry for all the delays, but things are starting to move around here! This is a formidable wait list starting so hurry up and get on it if you want some of our delicious kombucha before the New Year!
There are also going to be some pretty big changes around here you’ll begin to notice and we’ll be sure to keep everyone updated on our progress.

Thanks a lot for everyone’s interest and keep on fermenting!

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We Have Starter Kits Again!

Let us know if you want one, we’ve got green and black tea based kombucha homebrewing starter kits available for a limited time (until we can afford a steady supply again). Yerba maté base is now available on request too!


Filed under Delicious Bevs, Performing Science

How We Make Our Tea!

I’ve been hearing and reading a lot of people’s opinions on brewing kombucha lately. There is a lot of information out there and especially from the internet. Some of the brewing instructions I’ve seen are just dead wrong and could potentially screw up your kombucha pretty bad, kill your SCoBY, or in some cases make folks sick.
The truth is making kombucha can be as easy or as hard as you want to make it. If you can make sweet tea once every two weeks you should be able to make kombucha.
Here’s are a few basic rules everyone should follow. The proportions of ingredients are our own and based on successful experimentation and our resources which can be provided for anyone who asks.
The directions below are for brewing about 1 gallon of kombucha, leaving enough space for your SCoBY to reproduce and breathe.

What you will need:
1 pot big enough to boil a gallon of water, tea, sugar and safely stir
1 Food grade glass gallon jar
1 measuring cup, 1 tablespoon
1 rubberband
1 steril cloth, napkin or paper towel.
1 long spoon for stirring
1 strainer (for loose tea)
1 thermometer
4 Tablespoons or 1/4 cup of organic green or black tea
1 1/4 (1.25) cups of sugar
1 cup of fully fermented kombucha w/ SCoBY
14 cups of spring or filtered water

Step 1: Sterilize EVERYTHING. Bleach works but often boiling is an easy way to get your bottling equipment, measuring cups, etc ready to be used. We suggest the Constant Brewing Method so you should only sterilize your food grade glass jar you are going to be brewing in before you do your first batch in it or if it becomes contaminated.

Step 2: Boil your water in a pot that is big enough to stir your tea safely add more ingredients and avoid spillage.

Step 3: Add 1 1/4 (1.25) cups of organic and fair trade cane sugar, remove from heat, and stir.

Step 4: Wait for your water to cool and add 4 tablespoons of selected tea loose tea or 7 bags. Black tea should be brewed in water heated to 190º F and green tea should be brewed around 175º F (*green tea pictured below.)

Step 5: After about 15 minutes of brewing, strain your loose leaf tea or pull out your tea bags.

Step 6: Wait for your sweet tea to cool to at least 80º F and add it to your food grade glass gallon jar that you are going to brew your kombucha in and add 1 cup of starter tea and then the SCoBY.

Step 7: Secure a breathable and sterile cloth or paper towel napkin to the top of your gallon jar with a tight rubber band.

Step 8: Hide your kombucha away in an area that doesn’t get direct sunlight and will maintain a temperature consistently between 70º F and 80º F for 14 days. Pour a little out on the 14th day and taste test it.

You should be able to taste when the kombucha is fully fermented. It will lose it’s sugary taste and stop tasting distinctly like the black or green tea, if you’re familiar with kombucha already you know this taste.

Step 9: Bottle and drink your finished kombucha!


Filed under Dear god it is so late how am I doing this, Delicious Bevs, Performing Science, Probiotic Porn

Making Kombucha Wine!

Here are some pictures from when I made the kombucha wine about a month ago to the day.  Kombucha wine=Fully fermented kombucha tea + champagne yeast + more sugar + time and dark + bottles + more time and dark.  You can even make it at home with these pictorial instructions!

Step 1:  Add your champagne yeast and sugar to your carboy.  Activate the yeast by putting it in warm water.  One package of champagne yeast (package for up to five gallons) and 1 cup sugar per gallon of kombucha.

Step 2:  Add your fully fermented kombucha tea!  Make sure your kombucha is ready but if your tea has turned to vinegar, it is too late for it.  It would be like to using rotten grapes to make wine.

Step 3:  Hide it away in a dark place for a month or more.

Step 4: Bottle and hide it away again in a place that doesn’t get direct sun.  Remember with bottling that you NEED to either use the flip-top style bottles (Pictured) or a beer bottling set up with a capper and all that.  We use the flip-tops to reduce our waste.

I normally let my kombucha wine ferment for a LONG time to get a lot of the sweetness from the added sugar out.  Remember here, we’ve got yeast feeding off of sugar and it will keep feeding until there is no sugar left.  The longest I’ve ever let the wine go was about a ten months and it was AMAZING and STILL SWEET!  This means that there was sugar left in it so you could let yours go even longer.

I usually do my fermenting times like this:

In the carboy (the 5 gallon glass container)-6 weeks

In the bottle-minimum of 3 months


Filed under Nothing is growing in the jars that should be growing in the jars, Performing Science, Probiotic Porn

Organic Green Tea Pomegranate Kombucha!

We just bottled up some of our famous Organic Green Tea kombucha with our newest infusion flavor, POMEGRANATE!  We have both a strong and a more subtle brew that taste awesome with the organic pomegranate.  We also have our other infused blends of spirulina/chlorella Über Green Kom, and the Ginger Aw Snap (which I just made the name up for) as well as our OG flavor which is our Orginal.


Filed under Dear god it is so late how am I doing this, Nothing is growing in the jars that should be growing in the jars, Performing Science

SFBA Kombucha Kollective Is Now Totally Organic/Fair Trade!

We finally bit the price bullet and switched to everything to organic and fair trade!  So from here on out our sugar as well as both our green and black teas will all be certified organic and fair trade.  All of our infusions will also be organic unless noted.

We feel strongly about striving to aid in self sufficiency for all people and simultaneously encourage more responsible farming practices.  Both unfair labor practices and environmental misuse stem from the same irresponsible, short sighted human ignorance we hope everyone in the world has seen enough of and is ready to move on from.

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Filed under Dear god it is so late how am I doing this, Performing Science, There might be caffeine in this stuff, Uncategorized