"Non-astringent" refers to a type of fruit, particularly certain varieties of persimmons, that can be eaten while still firm and do not have a dry, puckering sensation in the mouth. These fruits are sweet and flavorful even when they are not fully ripe, making them enjoyable to eat without the need for cooking or ripening. In contrast to astringent fruits, which can cause a bitter taste and a dry feeling due to high tannin levels, non-astringent varieties are more palatable. This quality makes them popular for fresh consumption, allowing people to enjoy their natural sweetness straight from the tree.