WHY DONT ALL ANAEROBIC TEAS KILL PLANTS?
Because in many cases, with long enough brewing, the anaerobic organisms run out of food, and as the critters in the tea go to sleep, and stop using oxygen, then oxygen can diffuse back into the liquid. Then the aerobes can wake up and use the anaerobic metabolites. Thus, a strictly bacterial tea is produced, containing materials and organisms left from when the tea was anaerobic. Anaerobic materials can inhibit some disease organisms, but the brewing time is several weeks in duration, not overnight.