3 ms·Are you saying sushi roe gets fermented (or cured) while still inside the fish carcass?by metadat 4y agoAre you saying sushi roe gets fermented (or cured) while still inside the fish carcass?JKCalhoun 4y agoFor herring, yes. I can't speak to salmon roe.welder 4y agoSalmon roe gets pulled out of the fish as soon as it's off the boat, soaked in brine for about 10 minutes, then packaged for shipping.