Scoby
Symbiotic culture of bacteria and yeast, also known as SCOBY, is a fermentation culture consisting of lactic -and acetic acid bacteria and yeast. Often used within preparation of sour foods and beverages. Scoby is the basis for this material and is flattened out as a membrane that forms a sheet when dried. Various shapes can be made, and the material is suitable for storing semidry foods. After use the nutritious membrane can be composted or even eaten.