Storage To Refrigerate Refrigerate fish as soon as possible after purchase. Ideally, remove the fish from its wrapping and store it on crushed ice cubes on a plate in the fridge. Cover loosely with foil. Replace the ice as it melts. Do not place ice directly on fillets or darnes of salmon or trout. If the fish is packed in special foil wrapping by the fish retailer do not remove the fish from packaging, simply refrigerate as soon as possible. Fresh fish in good condition and properly stored should last a day or two after purchase. Freezing Fish Do not freeze previously frozen fish. Fresh white fish can be frozen for a maximum of 6 months. Oil-rich fish is best if used within 3 months. Remember to freeze fish as you intend to use it. For example do not freeze a whole salmon if the intention is to use portions on an ongoing basis. Please do not ask your retailer to vacuum pack fresh fish, i.e. whole salmon for your convenience, as this is not safe practice.