Sealed effectively and frozen. Haven’t tried using it however. Does have a strong fish scent on the outside of the bag. It looks yummy. A lot of Gulf and Atlantic states should have mackerel seasons, size or fat minimums, bag limits, and other regulations to maintain the population thriving As https://cowandgatecomfortmilkpowd70369.alltdesign.com/getting-my-norwegian-frozen-salmon-to-work-51366524