Color-enhanced Scanning Electron Micrograph (SEM) of kombucha bacteria. Kombucha is a lightly effervescent fermented drink of sweetened black and/or green tea. Kombucha contains multiple species of yeast and bacteria along with the organic acids, active enzymes, amino acids, and polyphenols they produce. The exact quantities vary between samples, but may contain: acetic acid, ethanol, gluconic acid, glucuronic acid, glycerol, lactic acid, usnic acid and B-vitamins. This image shows long bacilli. Bar: 1 micrometer. Image width: 7.11 micrometers. Magnification: 14,065x if the image is printed 10 cm wide.