the thing is fish can contain worms...it can't be helped, it's normal
Do fish have worms (parasites)?
All living organisms, including fish can have worms which are considered parasites because they feed off of their hosts. Because their presence occurs naturally, the worms are not considered contaminants. Worms are as common in fish as insects are in fruits and vegetables. Worms are not a concern in thoroughly cooked or commercially frozen fish.
When cooking fish, it should be cooked to heat all parts of the product to 145ºF or above for 15 seconds.
Worms become a concern when consumers eat raw or lightly preserved fish such as sashimi, sushi, ceviche, and gravlax. When preparing these products, use commercially frozen fish. Alternatively, freeze the fish to an internal temperature of -4°F for at least 7 days to kill any parasites that may be present. Home freezers may not be cold enough to kill the parasites.
The health risk from parasites is far less than the risk from "unseen" illness causing bacteria which are present on almost all foods.
Seafood Health Facts: Making Smart Choices
Do fish have worms (parasites)?
All living organisms, including fish can have worms which are considered parasites because they feed off of their hosts. Because their presence occurs naturally, the worms are not considered contaminants. Worms are as common in fish as insects are in fruits and vegetables. Worms are not a concern in thoroughly cooked or commercially frozen fish.
When cooking fish, it should be cooked to heat all parts of the product to 145ºF or above for 15 seconds.
Worms become a concern when consumers eat raw or lightly preserved fish such as sashimi, sushi, ceviche, and gravlax. When preparing these products, use commercially frozen fish. Alternatively, freeze the fish to an internal temperature of -4°F for at least 7 days to kill any parasites that may be present. Home freezers may not be cold enough to kill the parasites.
The health risk from parasites is far less than the risk from "unseen" illness causing bacteria which are present on almost all foods.
Seafood Health Facts: Making Smart Choices