Moisture encourages bacterial growth. Shrimp stored loosely in the refrigerator often:
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Sits in melting ice or condensation
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Develops slimy surfaces
This is why shrimp can smell “off” after just 24–48 hours.
3. Home Refrigerators Are Not Cold Enough
Commercial seafood is stored at just above freezing (28–30°F / −2 to −1°C).
Most home refrigerators run closer to 37–40°F (3–4°C).
That temperature difference is huge when it comes to shrimp quality.
The Big Myth: “Fresh Shrimp Should Never Be Frozen”
Many people believe freezing shrimp ruins its flavor.