Do a fermentation food keep for a long time?Good bacteria, which is included fermentation food, has high saving nature, because it play a part in to confine to the effect of bad bacteria, which causes decaying foods, and itself has sterilizing properties.
But, the fermentation food which has opened and touched the air once gets bad, because it is easy for miscellaneous germs to enter it.
Even unopened one advance to ferment in normal temperature, which make shorter to eat delicious. You must to keep it not to touch the air and fellow its open date.
Especially yogurt, you have to eat in open date because you surely get living lactic acid bacterium and effect of it.