To steam frozen fish until tender and free of fishy smell, the key lies in three interconnected steps: thawing, removing fishy smell, and controlling the thawing time. Each step affects the final taste. Master these techniques to easily make restaurant-quality steamed fish.
Scientific Thawing: Preserving the "Moisture" and "Elasticity" of the Fish
Incorrect thawing methods are the primary cause of loose fish meat and a strong fishy smell.
Preferred Method: Slow Thawing in the Refrigerator (Recommended)
Move the frozen fish to the refrigerator at 0–4°C 12 hours in advance for slow thawing. This maximizes the preservation of cell structure, prevents moisture loss, and results in the firmest texture.
Emergency Method: Sealed Immersion in Cold Water (Recommended )
Place the fish in a sealed bag and immerse it in cold water. Change the water every 10 minutes. Thawing should take approximately 20–30 minutes. Avoid soaking directly in water to prevent the dissolving and reabsorption of fishy-smelling substances.
Caution: Microwave defrosting. Microwave defrosting can cause localized heating and meat denaturation. It is only recommended to use the "defrost" setting for a short time, and immediately proceed to the next step.
Deep Deodorization: Eliminating Odor Factors at the Source
After defrosting, a systematic deodorization process is necessary to achieve "steamed fish without fishiness."
Physical Cleaning:
Thoroughly rinse the fish belly, scraping off the black peritoneum and blood clots attached to the bone-these are the main sources of fishy odor.
Use kitchen paper to absorb surface and abdominal moisture to reduce water release during steaming and maintain firm meat texture.
Chemical Deodorization:
Soak the fish in scallion and ginger water with 1 tablespoon of cooking wine for 10 minutes. The ethanol reacts with trimethylamine, reducing the volatility of the fishy odor.
Adding a tablespoon of white vinegar or lemon juice can further neutralize amines in the acidic environment.
Masking and Neutralizing with Spices
Before steaming, make incisions on the fish, place ginger slices and stuff with scallion segments, using volatile essential oils (such as gingerol) to neutralize any unpleasant odors.
A small amount of lard or sesame oil can be applied to the fish to form a protective layer, locking in juices and enhancing aroma.
