Shelf Life Tips
- How long does frozen mackerel last? The precise answer to that question depends to a large extent on storage conditions - keep mackerel frozen at all times.
Properly stored, frozen mackerel will maintain best quality for about 9 months in the freezer, although it will usually remain safe to eat after that.
Is frozen mackerel safe to eat after the expiration date on the package? Yes, if properly stored - commercially frozen mackerel will typically carry a “Best By," "Best if Used By," “Best Before”, or "Best When Used By" date but this is not a safety date, it is the manufacturer's estimate of how long the frozen mackerel will remain at peak quality.
How long will frozen mackerel remain safe to eat? Frozen mackerel that has been kept constantly frozen at 0°F will keep safe indefinitely, as long as it has been stored properly and the package is not damaged.
How to tell if frozen mackerel is no longer good? If dry spots or discoloration have developed on the frozen mackerel, freezer burn has begun to set in - this will not make the mackerel unsafe to eat, but it will harm the texture and taste.
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Sources: For details about data sources used for food storage information, please click here