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View Full Version : Kombucha: Single Brewing and Continuous Brewing ~ Lets Do It ~


gojo
09-16-2008, 11:16 PM
Hey yall health nuts!


I'm starting a new single brew of komubcha from which I make a continuous brew of kombucha for a constant source :rasta:

There are many claimed benefits to kombucha which is a synergistic mix of yeasts and bacterias, so far the only proven benefit I know it's antioxidants. But I personally believe there are many benefits to kombucha (a polyculture), I am much more energized after I drink it, I can concentrate better, etc. I really like how kombucha makes me feel after a week of drinking it. But there are is so far no proof it is beneficial for humans, though rodent trials have been promising (though I don't agree with testing on animals). In fact, it has injured humans before via contamination by harmful microbes.

In my next post I put up some picture and a few notes of how I try to limit contamination exposure.

Analysis of the Kombucha Ferment (http://happyherbalist.com/analysis_of_kombucha.htm) (with list and info on microbes in kombucha and what they do)

Kombuca 'library', good stuff: http://www.happyherbalist.com/index.asp?PageAction=VIEWCATS&Category=60

HERE (http://www.fungi.com/info/articles/blob.html) is Paul Stamets great monologue about kombucha, FDA, contamination, etc. (a must read!)

Also, I have been told by many people to buy the book "Kombucha: Healthy Beverage and Natural Remedy From the Far East", by Guenther Frank. It's the de-facto bible on kombucha.

Ingredients I'm using:

Organic "Ma-Chai" tea (black tea leaf, ginger, cardamom, black pepper, clove, rose petals and saffron)
Organic raw can sugar


All the directions to make single brew kombucha is HERE (http://www.happyherbalist.com/index.asp?PageAction=VIEWPROD&ProdID=129), and then info on continuous brewing HERE (http://www.happyherbalist.com/continuous_brewing.htm#Section_I)and how-to run a continuous brew HERE (http://www.happyherbalist.com/continuous_brewing.htm#Section_II). But please read about my method first...


Why continuous brew?:
Taste & Benefit - The Optimum Kombucha Brew. Continuous Brewing is the easiest and simplest way to make Kombucha Tea. All one needs is a 2 gallon or larger container. Other equipment, as shown on our left hand column, and explained below, make life simpler.

Follow the basic Kombucha Recipe. Once you have fermented your Kombucha tea to its proper level, all you have to do is to replace that which you drink with fresh sugar & tea mix. Adding new sugar and tea may be done each day, or every other day and sometimes on the third day.

Advantage of the Continuous Brewing Method is that the optimum health benefit of all the nutrients are readily available. There is no need to do weekly cleaning, no need to remove or worry about the kombucha mushroom, and mold is far less likely to form. Since you are simply maintaining a consistent established ferment, your brew is far less likely to be influenced by wild or airborne bacteria and yeasts. In kombucha fermenting, as in beer, wine or vinegar, the initial phrase, is the most critical and the most likely time a batch may go off in a unwanted direction.

Only Continuous Brewing of the kombucha allows the formation of the vast array of the many nutrients and acids that are constantly being produced and broken down throughout the active ferment time. Kombucha Researcher Mike Roussin indicated that at 80o F and 7 days the ferment has the greatest variety of health benefits. (vitamins, oxylic acid, etc) However, he also noted that the longer the ferment was allowed to proceed the more beneficial acids will have a chance to form. Some of these acids don't even appear until 14-21 days in the typical process. These acids are largely responsible for the detoxifying nature of Kombucha Tea and are the catalysts we seek in kombucha mushroom tea. Glucose content maximizes around the 8th or 9th day. This implies that gluconic acid production could not peak until after that point. Gluconic acid is the biggest single contributor to the detox effect. Where the typical Single Stage Method, in the hands of a brew master, may be able to develop a high level of a single nutrient or two, the Continuous Brew will always produce the widest range of all the nutrients possible.



The Organic Acids provided by Kombucha:

Glucuronic acid
The body's most important detoxifier. When toxins enter the liver this acid binds them to it and flushes them out through the kidneys. Once bound by glucuronic acid toxins cannot escape. A product of the oxidation process of glucose, glucuronic acid is one of the more significant constituents of Kombucha. As a detoxifying agent it's one of the few agents that can cope with pollution from the products of the petroleum industry, including all the plastics, herbicides, pesticides and resins. It kidnaps the phenols in the liver, which are then eliminated easily by the kidneys. Kombucha can be very helpful for allergy sufferers. Another by-product of glucuronic acid are the glucosamines, the structures associated with cartilage, collagen and the fluids which lubricate the joints. It is this function that makes Kombucha so effective against arthritis.

Lactic Acid
Essential for the digestive system. Assist blood circulation, helps prevent bowel decay and constipation. Aids in balancing acids and alkaline in the body and believed to help in the prevention of cancer by helping to regulate blood pH levels.

Acetic Acid
A powerful preservative and it inhibits harmful bacteria.

Usnic Acid
A natural antibiotic that can be effective against many viruses.

Oxalic Acid
An effective preservative and encourages the intercellular production of energy.

Malic acid
Helps detoxify the liver.

Gluconic Acid
Produced by the bacteria, it can break down to caprylic acid is of great benefit to sufferers of candidiasis and other yeast infections such as thrush.

Butyric acid
Produced by the yeast, protects human cellular membranes and combined with Gluconic acid strengthens the walls of the gut to combat yeast infections like candida.

Green Supreme
09-16-2008, 11:37 PM
Damn dude I use to make that stuff every week in the mid nineties. Was easy getting rid of babies too back then. Hmm haven't seen one of them shroomies since about 2000 though. Thanks for the memories. Peace GS

ps I always made it with flavored herb teas as it tasted better

gojo
09-16-2008, 11:40 PM
Hey GS,

I've got a few SCOBYs growing, one is going to Cray but I could send one your way if you'd like?

gojo
09-16-2008, 11:52 PM
Info on contamination and health benefits:

After reading up a lot I am thinking it's best to take a lot of steps to try to help insure sterility:

I run all items though the dish washer with 'heat dry' switched on. I use "micro-pore" tape to cover the spout hole in the ice tea pitcher (for fresh air). The micro-pore tape will block up to .3 micron contamination. I take a shower and put on clean cloths AND wear surgical gloves. I wipe my forearm and gloves down with isopropinal alcohol, along with metal stirring spoon and other 'tools'. I even try only work in front of my HEPA filter to help prevent air born contamination while the lid is off the ice tea pitcher. Though, all that is for not is the mother 'mushroom', aka "SOCBY" ("Symbiotic Culture Of Bacteria and Yeasts") is contaminated...


Paul Stamets:
http://www.fungi.com/info/articles/blob.html

One of the major problems with trying to culture Kombucha at home is the fact that the sugar medium is non-selective. The culturing of yogurt or sourdough can be done with a modicum of success, because the milk and flour media selectively favors the desired organisms. Not so with sugar, tea and water which is an "open slate" for the culturing of most microorganisms - including pathogenic Aspergillus, Candida, Cryptococcus, and Fusarium species. The first week is the most critical time during which contaminants in Kombucha race for dominance. As the PH of the broth descends into acidity, the risk of pathogenic organisms proliferating is real and measurable. The primary vectors of contamination are of course, the air. Cheese cloth is an ineffective filtration membrane for preventing airborne contamination. Airborne contamination can be prevented by forcing air through a sub-micron filter, the type which are commonly used in Laminar Flow Hoods in sterile tissue culture. Without such filtration (99.99% at .3 microns), contamination is probable. It is easy to prove this danger by simply pouring the sugar media into sterile Petri dishes (with a gelatinizer like agar agar added). Exposing these dishes briefly to the air in your kitchen will result in a plethora of contamination growth in only 4-5 days. These organisms are made more visible on the surface of the media because of the gelatinizing agent—agar. In liquid culture, they are proliferating even more rapidly, but more invisibly, because they are submerged. The other vectors of contamination are: the mother culture, the insufficiently sterilized media, your hands, and the vessel in which the brew is made.

Few people are aware that more than 1,000,000 particles exceeding .3 microns are floating in the air per cubic foot. These are generally not dangerous unless they become more concentrated or if the impacted human is immunocompromised. Although the majority of these contaminants may not be dangerous, it takes only one pathogenic species proliferating to a toxic level to cause serious harm. Making Kombucha under non-sterile conditions becomes, in a sense, a biological form of Russian Roulette. For those who are ill, drinking Kombucha prepared at home could be one of the worst things they could do!



MAYO Clinic:
http://www.mayoclinic.com/health/kombucha-tea/AN01658
Long popular in other countries, kombucha tea is now gaining popularity in the United States. Although frequently referred to as a mushroom, kombucha is not a mushroom — it's a symbiosis of bacteria and yeast. When sugar and black or green tea are added to kombucha, a fermentation process results in the "tea" — a liquid containing vinegar, B vitamins and a number of other chemical compounds. Kombucha is most commonly prepared by taking a starter sample from an existing culture and growing a new colony in a fresh jar.

As with any dietary supplement or natural product, it's critical to do your homework before considering using kombucha tea on a regular basis. First, determine the level of evidence that exists to substantiate the health claims for the product. In the case of kombucha, there isn't a single human trial that has been reported in the peer-reviewed literature. This doesn't mean that kombucha tea can't possibly have health benefits, it just means that at this time, except for some lab and animal studies, there's no direct evidence that kombucha tea actually provides any of the health benefits it's reported to have.

The second "homework" question for any dietary supplement centers on safety. Have there been any credible reports of harm or illness caused by the product? In the case of kombucha tea, there are a number of cautionary reports. The home-brewing process can lead to contamination, with several cases of cutaneous anthrax developing in one community where a tainted batch was widely shared. Aspergillus is a fungus that has been found in kombucha tea and can be potentially dangerous, especially to people with weakened immune systems.

Other adverse effects that have been reported include allergic reactions, jaundice, nausea and vomiting, and one suspected death. Lead poisoning also has been reported when a ceramic pot was used to brew the preparation. It's theorized that the acids in the tea leached lead out of the ceramic glaze, resulting in lead poisoning after several months of consumption.

In short, there's no proof that kombucha tea is effective for any of its myriad health claims. At the same time, several cases of harm or injury have been reported. Unless definitive studies are reported that can quantify more accurately the potential risks and benefits of kombucha tea, it's best to avoid it.


Kombucha tea information by Ray Sahelian, M.D. Health benefit and side effects of kombucha tea
(With a few good studies)
http://www.raysahelian.com/kombucha.html
[quote]Kombucha tea benefit
There have not been any reliable human studies with kombucha tea, therefore, at this point, it is difficult to report any proof of kombucha benefit or harm. Rodents studies indicate kombucha tea has antioxidant and immune influencing properties, along with liver protecting and anti-stress potential. However, some human case studies as listed below raise some concern about possible kombucha side effects.

Kombucha Questions

Q. I am confused as to whether kombucha tea is a healthy drink or can cause harm.

A. At this point my understanding is that kombucha tea has the health benefit of being an antioxidant, but until long term studies are done, it would be best to limit the use of kombucha tea to once or twice a week.


Q. I heard about a gluconic acid in kombucha tea, have you heard about this?

A. Gluconic acid is found naturally in fruit, honey, kombucha tea and wine and is used as a food additive, an acidity regulator. See gluconate for more info.


Q. I am from Chennai, India, doing my masters in microbiology. I was fascinated by kombucha tea and planned to do my project on it but unfortunately my guide and other professors whom i can look up to have not heard about kombucha and are unable to direct me. I would like to know if there are any tests available to prove any of health benefits. If there are health benefits but how can we prove them?

A. As of January of 2008, we have not come across any human clinical trials with kombucha tea, so we can't say kombucha tea has health benefit s with any confidence.

gojo
09-17-2008, 12:25 AM
OK, here's what I'm doing:

I just started a new single brew today so in 8 days. I'll update this thread with info and pics when I start the continuous brewing.



Boil 3.5 quarts (13.25 cups) of distilled water for 15 minutes


Add unrefined brown cane sugar (300g) and tea bags (5g loose leaf, one of my bags = 2.5g loose leaf) into water and steep for 5 minutes with lid on, dissolve sugar:
https://www.cannabis-world.org/cw/picture.php?albumid=13&pictureid=53&thumb=1 (https://www.cannabis-world.org/cw/picture.php?albumid=13&pictureid=53)


Pour tea into ice tea pitcher (in front of HEPA)


Put lid on ice tea pitcher with the micro-pore tape:
https://www.cannabis-world.org/cw/picture.php?albumid=13&pictureid=51&thumb=1 (https://www.cannabis-world.org/cw/picture.php?albumid=13&pictureid=51)


Place ice tea pitcher in shelf and allow to cool to room temp


Put SCOBY in shelf and bring to room temp. SCOBY goes kind of dormant when placed in refrigerator.


Take out SCOBY and put in ice tea pitcher, along with 2 cups of 'starter' kombuca tea. (in front of HEPA)
https://www.cannabis-world.org/cw/picture.php?albumid=13&pictureid=50&thumb=1 (https://www.cannabis-world.org/cw/picture.php?albumid=13&pictureid=50)
https://www.cannabis-world.org/cw/picture.php?albumid=13&pictureid=49&thumb=1 (https://www.cannabis-world.org/cw/picture.php?albumid=13&pictureid=49)
https://www.cannabis-world.org/cw/picture.php?albumid=13&pictureid=52&thumb=1 (https://www.cannabis-world.org/cw/picture.php?albumid=13&pictureid=52)


Put lid on and place in secluded area at 75-80F for 6-8 days.


After 6-8 days if the pH is below 3.2 then kombuca tea is ready to drink! :rasta:





HTH :)

gojo
09-17-2008, 12:39 AM
Soy milk Kefir :rasta:

My next project is to make water and also soy milk kefir (I don't do lactose). First I need kefir grains, anyone have some they want to send me? If not I can order them from GEM.


Find Kefir and grains: http://www.seedsofhealth.co.uk/resources/find/find_kefir.shtml


How to culture kefir grains:
(a) http://www.rejoiceinlife.com/kefir/riln14.php

(b) http://www.happyherbalist.com/how_to_kefir.htm

(c) http://www.seedsofhealth.co.uk/fermenting/kefir_howto.shtml


Dom's Kefir page: http://users.chariot.net.au/~dna/kefirpage.html


Kefir Grain Support Forum: http://curezone.com/forums/f.asp?f=295


Kefir: http://comfort4adhd.tripod.com/id44.html

gojo
09-17-2008, 12:54 AM
ps I always made it with flavored herb teas as it tasted better

Yea, once the pH hits 3.2 I'm gonna add some spirulina and blue green algae to sweeten it up, add protein, phytohormones, etc. Then I'll let it ferment for about another day or two, then drink!

...I LOVE the effect of phytohormones, I LOVE the effect they have on me via. kombucha, amazing amounts of energy!!!