Food
How Does Ceviche Cook Fish Without Any Heat?
What chemical process cooks fresh fish in ceviche without heat?
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What is the answer to how ceviche cooks fish without heat?
Protein denaturation by acids. The acid in lime or lemon juice unfolds the fish's proteins, firming the flesh and turning it opaque just like heat would.
Is ceviche raw or cooked?
Technically it stays raw in the cooking sense, since no heat is used. The citric acid only denatures the proteins, changing the texture and look without killing all bacteria like cooking does.
Why does lime juice make ceviche fish turn white?
The acid breaks the chemical bonds holding the protein's 3D shape, so it unravels and turns opaque, the same visual effect heat creates.