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This is a presentation I did for the ALEiens Homebrew Club on Kombucha.
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ALEiens March 2013 Meeting
how to make
KOMBUCHA
Talking Kombucha
1What Is Kombucha?
2Benefits of
Kombucha
3How to Make
Kombucha
What is Kombucha?1
Kombucha is an effervescent fermentation of sweetened tea that is used as a functional food.
Kombucha is brewed with 3 major ingredients.• Tea• Sugar• Water
The sweet tea is then fermented by a Symbiotic Culture Of Bacteria and Yeast
Better known as a SCOBY
What Makes Up Kombucha
S.C.O.B.Y. – What’s In a SCOBY
Saccharomyces (yeast)produces alcohol
Acetobacter (bacteria)produces acetic acid & gluconic acid & cellulose
Brettanomyces (yeast)produces acetic acid and alcohol
Pediococcus (bacteria)produces lactic acid
Lactobacillus (bacteria)Produces lactic acid
Plus dozens of other beneficial bacteria, enzymes, and yeast.
A Sip of Kombucha Contains
Organic Compounds:• Acetic acid• Butyric acid• B-vitamins• Ethanol• Gluconic acid• Lactic acid• Malic acid• Oxalic acid• Usnic acid
Probiotic Live Cultures:• Acetobacter• Brettanomyces• Pediococcus• Lactobacillus • Saccharomyces• Candida• Schizosaccharomyces• Torulaspora • Zygosaccharomyces
What Does Kombucha Taste Like?
Depends a lot on time, ingredients, and cultures• Sweet to Sour• Vinegary• Fruity• Herbal• Funky• Fizzy
History of Kombucha
• Originated in North East China in 221 B.C.– Chinese called it “Remedy for Immortality”
• 414 A.D., Dr. Kombu from Korea brought Kombucha to Japan to treat the Japanese Emperor Inkyo.
• The spread through Russia, Europe, and India
2 Benefits of Kombucha
First, A Warning
The health benefits of Kombucha have not be researched fully. Many people claim it is a wonder drink, while others feel it may cause harm.
I fall in the middle. I don’t believe it is harmful unless ingested in extreme amounts, but I also don’t believe it is a drink that will cure all disease.
What Are Some Claimed Benefits • Boosts Energy
• Improves Digestion • Strengthens at a Cellular level • Prevents Acid Reflux • Assists With Weight Loss • Improves Sleep • Relieves Constipation • Strengthens and restores hair • Beautifies the skin • Improves Circulation • Removes toxicity from the body • Improves eyesight • Eases the pain of arthritis
Kombucha contains beneficial bacteria in the form of Lactobacillus Acidophilus, as well as dozens of other probiotic strains. By ingesting Kombucha, we can increase the amounts of good bacteria to maintain a healthy digestive tract. Kombucha has been known to possess anti-viral, anti-bacterial, and anti-fungal components which make it an powerful addition to the health conscious individual.
What Are Some Claimed Negatives • Allergic and Toxic reactions
• Bacterial Illness• Liver Damage • Lead Poisoning• Contains Alcohol (up to 2%)• Stomach Ulcers
3 How to Make Kombucha
First You Need a SCOBY
• A SCOBY is easy to grow from a bottle of Raw Kombucha
• Many internet sites sell Kombucha Kits with a SCOBY. Even many on eBay.
• Find someone local with a SCOBY. (Craigslist)
How to Grow Your Own SCOBY
• Brew a gallon of tea• Add a cup of sugar• Let cool to room temperature• Add 2 bottles of GT’s Original
Organic Raw Kombucha• Cover container with tight
cloth• Keep warm – 70F to 80F
How to Grow Your Own SCOBY
• In about a week or two, a young SCOBY will be forming.
• Wait about a month for it to get about ¼ to ½ inch thick.
• You now have a SCOBY.
Warning: don’t drink the SCOBY starter tea. It will be very vinegary.
Making Kombucha – The Tea’s
Good for Kombucha• Black Tea• Oolong Tea• Green Tea• Red Tea (when mixed)
• White Tea (when mixed)
Bad for Kombucha• Tea’s with Oils –
Earl Grey, Chai Tea, Flavored Ceylon
• Herbal Teas
Making Kombucha – The Sugar
Good for Kombucha• Plain Table Sugar• Evaporated Cane
Crystals• Pasteurized Honey
•
Bad for Kombucha• Sugars that contain
Molasses– Brown Sugar,
Rapadura, Sucanat, Turbinado, Raw Sugar, Molasses.
• Agave• Corn Syrup
Equipment for Kombucha
A Fermentation Vessel
Fermentation Process
Traditional Batch• Every batch is drained
and sweet tea added.• This is like most home
brewers.• Can change tea/sugar
combo any time.
Continuous Brewing• Only 25% of Kombucha
is removed and replaced with sweet tea.
• This is more like a Solara Method is home brewing.
• More complex flavors and nutritious.
Fermentation Tips
• Temperatures can range between 70F and 85F. Different flavor profiles can be achieved with temp.
• Use a clean towel on top of opening to allow oxygen to help ferment, but leave dirt and dust behind. Secure with rubber band.
• A new SCOBY will form with every brew. Store old SCOBYs in a SCOBY Hotel. A separate vessel full of just aging SCOBYs.
• Be clean and sanitary.
Adding Flavors and Bottling
• I add fruit juices and flavors at bottling, using the sugars from the juice to help with bottle conditioning and carbonating.
• Use fresh juice when possible. • Avoid juice with preservatives.• Can add different combos and amounts of juice and
herbs to individual bottles for easy experiments and recipe creation
• Test bottles after 3-4 days for carbonation levels until level is achieved. Then refrigerate to stop the process.
Sample Plain Kombucha Recipe
- 3 Quarts of Water- 1 Cup Organic White Sugar- 5 Organic Black Tea Bags- ½ Cup of Kombucha from a
previous batch- 1 Kombucha SCOBY
Find Out More About Kombucha
• www.kombuchakamp.com• www.culturesforhealth.com• shop.kombuchabrooklyn.com
THANK YOUThat’s All Folks
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