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Fish sauce is salt and fermented fish, and mostly umami

Proteins break into amino acids, leaving free glutamate behind

Fish sauce is made by packing small fish with salt and leaving them for months, during which enzymes and bacteria break proteins into peptides and amino acids. Free glutamate and other savoury compounds give the dark liquid its deep flavour, and the heavy salt prevents spoilage while the fermentation runs. It is used as seasoning rather than as a sauce.

Anchovies for fish sauce
Frank Fox ยท CC BY-SA 4.0 ยท licence ยท source

Where this comes from

Food and Agriculture Organization

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Tags: fish sauce, fermentation, umami

Fish sauce is salt and fermented fish, and mostly umami: the short answers

Where does this come from, and can I check it?
Proteins break into amino acids, leaving free glutamate behind. The figure is taken from Food and Agriculture Organization, which is linked in full on this page. Every fact on Mondo Knows names its source rather than repeating an unsourced claim.
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