What’s a SCOBY - well it turns sugary tea into a reputable fermented drink (Kombucha) good for gut health and see more on Wikipedia (and stands for Symbiotic Culture Of Bacteria and Yeast.) Every time you ferment it, it grows another layer and so here’s the latest excess ready for someone new.
It reproduces every week until you end up with more than you need and so I regularly post the surplus on here. Comes in a sealed soup bag for easy transport!