Yes, seafood should ideally be vacuum sealed before freezing to prevent freezer burn and maintain its quality, texture, and flavor.
Freezing seafood without proper protection can lead to freezer burn, which occurs when moisture evaporates from the surface of the fish, causing it to become dry, tough, and discolored. Vacuum sealing removes air from the packaging, preventing oxidation and dehydration. This process significantly extends the shelf life of the seafood in the freezer and preserves its original taste and texture. Here's a breakdown of why vacuum sealing is beneficial:
Prevents Freezer Burn: By removing air, vacuum sealing minimizes the formation of ice crystals on the surface of the seafood, which are the primary cause of freezer burn.
Maintains Moisture: Vacuum sealing helps retain the natural moisture content of the seafood, preventing it from drying out during freezing.
Preserves Flavor: Exposure to air can cause seafood to develop off-flavors. Vacuum sealing protects the seafood from oxidation, preserving its fresh taste.
Extends Shelf Life: Vacuum-sealed seafood can last much longer in the freezer compared to seafood stored in regular freezer bags or containers. Properly vacuum-sealed seafood can last for several months without significant quality loss.
Before vacuum sealing, consider flash freezing the seafood on a baking sheet for about an hour. This will help the seafood retain its shape and prevent it from being crushed during the vacuum sealing process, especially for delicate items like fillets.