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I appreciate all of your help, but I fear you are getting caught up on the word acid in humic acid. Humic acid is a very, very weak acid and the amounts needed to darken water will in no way alter it's pH. A cup of tea would be much more acidic than water colored similarly brown by humic acid...

Awesome, thanks. It would be interesting to try and figure out what the upper and lower limits of how much sugar is needed/tolerated, compared to the time necessary to complete a batch of tea (supposing temperature is kept constant). But there are so many variables and everyone's taste of what...

Thank you for your reply... I figured it had to do with the acidity. So this means the kombucha produced by commercial brewers is tainted with metals oxides, yuk!!! I have heard that some brewers will do an acid wash on their stainless steel tanks prior to brewing a batch of kombucha. This...

I would assume if you left out the black tea, that there would be nothing in the liquid to detract from the vinegary-ness and the resulting kombucha tea would be quite nasty, unless it was further processed.... I am not a fan of vinegary tastes and so I do my best to dilute the tea so I can't...

Thank you for your reply, I appreciate the "food for thought." I am curious whether the tea acts in a similar way as adding humic acid in an aquaponcs system; to shade the liquid so things like algae don't have a chance to grow. Plus it seems that the acidity makes for an environment that is...

I have heard this repeated over and over since the early 1990's and I have always wondered why you shouldn't use metal and whether people are talking about specific types of metal like iron, instead of stainless steel. The reason I say this is because I have seen several videos of companies that...

Hello all I keep reading page after page on Kombucha brewing and they all pretty much parrot each other, but don’t really give a reason why the tea is necessary. I am curious if the tea is even necessary? Is it used because strong black tea is slightly acidic? Does anyone have any links or...