What critical step must commercial preparation use to kill parasites in cod intended for raw use?
Answer
Deep freezing to specific cold temperatures for a sufficient duration
For cod or any wild-caught fish intended for raw consumption, such as in sushi, handling protocols must include deep freezing. This process requires holding the fish at temperatures cold enough and for a duration long enough to reliably kill any potential parasites, such as anisakis simplex. This deep freezing is a non-negotiable safety measure for commercial operations, as home freezers often cannot replicate the necessary severe conditions required to eliminate the risk entirely.
Related Questions
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