108299
It forms a gelatinous substance that allows it to be easily transferred from one fermenting substrate to the next , much like kefir grains , kombucha , and tibicos .
 kefir grains, kombucha
Please list all entity words in the text that fit the category. Output format is "word1, word2". 
Option: media, plant, vehicle, astronomical object, time, disease, animal, location, person, organization, mythical figure, food, biology, geographical phenomenon, instrument, event 
Text: {0} 
Answer:
 kefir grains, kombucha