Fermented clothing? Here’s how the biofilm on kombucha can be turned into green textiles

A SCOBY biofilm atop kombucha l i g h t p o e t/Shutterstock

If you’ve ever made kombucha, you will be familiar with the term SCOBY – a symbiotic culture of bacteria and yeast. It’s impossible to miss – it’s the floating biofilm on top of your delicious drink.

While a SCOBY looks gross, it is remarkably versatile. If you feed it on sugar and tea or coffee in large vats, it grows rapidly. The reason you need tea or coffee is because caffeine contains nitrogen, which stimulates microorganism growth. Species of bacteria in the SCOBY such as komagataeibacter xylinus have the curious ability to eat sugars and produce bacterial cellulose.