This is the 15112th most frequent Korean word.
발효된
"Fermented."
In this sentence, '발효된' is used as a descriptive adjective, modifying '음식', to specify that the food is fermented.
발효된 음식은 건강에 좋습니다.
Fermented food is good for health.
Here, '발효된' describes '차', indicating that the tea experienced fermentation.
우리는 발효된 차를 마셔보았습니다.
We tried drinking fermented tea.
In this instance, '발효된' modifies '상품', denoting that the products underwent a fermentation process.