Steamed fish in black bean sauce is to wash the fish and put it on a plate, sprinkle onion, ginger, garlic and then drizzle with black bean sauce and put it into the steamer to steam. This makes the fish have both the original flavor of the fish and with the black bean sauce of the black bean aroma. Steamed fish is the onion, ginger, garlic sprinkled on the pot directly on the steamer, so that the fish made out of the fish to maximize the preservation of the freshness of the fish itself. These two kinds of fish in the practice is not very different, both are steamed. The biggest difference between the two is that there is no black bean sauce.