Guest guest Posted April 10, 2005 Report Share Posted April 10, 2005 dry black powdery stuff is usually Aspergillus niger VERY BAD STUFF " Aspergillus niger is a fungus and one of the most common species of the genus Aspergillus. It causes black mould on certain types of fruit and vegetables, and is a common contaminant of food. Disease risks http://en.wikipedia.org/wiki/Aspergillus_niger Aspergillus niger is less likely to cause disease than some other Aspergillus species, but if large amounts of the spores are breathed in, the serious lung disease aspergillosis can occur. Aspergillosis is particularly frequent among horticultural workers breathing in peat dust which can be rich in Aspergillus spores. It is less harmful, though not entirely free from risks, if eaten and digested... " However, it may cause a nasty sinus infection that may not even be detected by your local doctor - and is difficult to get rid of... do not sniff, smell, touch or allow to become airborne..... This is not the smooth darker spots associated with tannins in the ferment. The smooth dark spots are associated with the brown squidly stuff than hangs down from the mushroom. and may form pockets that are isolated on the underside of the otherwise creamy white smooth mushroom. Those dark or black spots are normal Fuzz --- Dry --- Appearing on top usually forms in concentric circles .... is...MOLD ... (or mould) Advice .... dump it all. first saturate a coffee filter or paper towel in bleach. be sure to bleach whatever you used to cover the ferment as this is contaminated as well. then lay on top of the mushroom et al. cover again with clean paper towel and allow a few minutes for the bleach to work then dispose of per local regulations. There should be pictures of mold here http://www.happyherbalist.com/pictures.htm Ed Kasper LAc. Licensed Acupuncturist & Herbalist Acupuncture is a jab well done www.HappyHerbalist.com Santa Cruz, CA. Dilemma Hi, I just talked to a friend of mine in Florida and he's concerned about his culture. This is his second brew since he acquired the culture and he told me that he had black spots on the culture that was powdery, like fine ground coffee and it would stick to the straw when he submerged it. It doesn't sound good to me but I need your opinion. He has also been using 10 tea bags instead of 5 for a 1 gallon jug, which he thought he read somewhere or just misunderstood. I have never heard of black spots and I've read just about all the websites pertaining to Kombucha and what they are supposed to look like. His tea is into it's 8th day of fermentation and the cultures are only about 1/16 to 1/8 inch thick, with the black spots. Could this be some kind of mold, I'm puzzled. Any help you can give me would be much appreciated so I can pass it on before he drinks any of it. Thanks, Judy Quote Link to comment Share on other sites More sharing options...
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