Seeing most all seafood, don't have to cook long, such as fish, scallops, shrimp, clams etc, this would work as well for them, as with just a slab of fish alone I bet. I would not do this with lobster, stone crab, snow crab, king crab, in its shells, per boil them first, remove the meat, than add it when almost all the way done. The same with blue crabs to.