AI Worms

AI Overview

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Worms, specifically parasites like Anisakis nematodes, are a natural occurrence in wild-caught fish, including salmon sold at Costco, and are generally harmless if the fish is cooked to 145°F or properly frozen. While seeing them can be unsettling, they pose no risk when killed by heat or freezing, so you can either remove the parasite and cook the fish or return the salmon to the store for a refund.  

 

What to do if you find worms in your salmon:

• Cook it: 

  Properly cooking the fish to an internal temperature of 145°F (63°C) will kill the parasite. 

   

• Freeze it: 

  If you're preparing the fish for sushi or other raw preparations, ensure it has been properly frozen to kill any parasites. 

   

• Return it: 

  If you're uncomfortable with the idea of cooking it, you can return the salmon to Costco for a refund. 

   

1. Don't panic: 

   The worms are a common and natural part of wild fish. 

    

Understanding the worms:

• Common Parasites: 

  The worms are typically Anisakis nematodes, also known as herring or cod worms. 

   

• Wild vs. Farmed: 

  These parasites are more common in wild-caught fish. Farmed salmon has a much lower risk of parasites because they are raised in controlled environments and fed pellet feeds. 

   

• Not a Sign of Poor Quality: 

  In wild salmon, the presence of these parasites can actually indicate high-quality, wild-caught fish that has lived a full life in the ocean. 

   

Safety measures:

• Cook thoroughly: 

  Always cook salmon to an internal temperature of 145°F (63°C) to ensure any parasites are killed. 

   

• Freezing for Raw Consumption: 

  For raw preparations like sushi, the fish must be frozen to a specific temperature for a certain duration to kill the parasites. 

   

• Choose wisely: 

  If you are concerned about parasites, consider purchasing farmed salmon, which has a lower risk.