2,304. Identifying Kosher Fish Eggs

Maachalos Assuros 3:19

For reasons outlined in the previous halacha, we don’t buy eggs from non-Jews unless we can identify the eggs as being from a particular kosher species. We don’t suspect that they may have come from a bird that was a treifa or a neveilah. We don’t buy stirred eggs from non-Jews at all.

Maachalos Assuros 3:20

The signs of kosher fish eggs are the same as for kosher bird eggs: if both ends of an egg are round or pointed, it’s not kosher. If one end is pointed and the other is round, one should ask the Jew who sells them. If he says that he salted them and he took them from a kosher species, one may eat them based on his words. If he just says that they’re kosher, one may not rely on him unless he’s already known to be upstanding.