Seafood should be stored on ice, preferably flaked or crushed ice, to maintain a temperature as close to 32°F (0°C) as possible. Ice packs can be used as a supplement but are not as effective alone.
Storing seafood properly is crucial for preventing bacterial growth and maintaining its quality. Ice is the preferred method because it provides consistent and even cooling. As the ice melts, it surrounds the seafood, keeping it at a near-freezing temperature. This significantly slows down the activity of spoilage bacteria and enzymes.
Flaked or crushed ice is better than cubed ice because it provides more surface area contact with the seafood, resulting in more efficient cooling. The melting ice also helps to keep the seafood moist, preventing it from drying out.
While ice packs can help, they don't offer the same level of consistent cooling as ice. Ice packs often have cold spots and may not maintain a uniformly low temperature around the seafood. They are best used in conjunction with ice, especially during transportation or when ice replenishment is limited. Always ensure the seafood is properly wrapped or sealed to prevent direct contact with the melting ice water, which can leach out flavor and nutrients.
Place a layer of ice in a container, then put a perforated tray or rack on top of the ice. Place the seafood on the tray. This prevents the seafood from sitting directly in the melting ice water, which can make it waterlogged and affect its taste and texture.