- Season
- Produced and sold year-round; the anchovy catch that supplies it is seasonal.
- Price
- Medium
- Nutrition per 100 g
- 35 kcal
- 5.1 g protein
- 0 g fat
- 3.6 g carbs
Fish Sauce
Condiments and sauces
Fish Sauce
Fish sauce is a liquid seasoning obtained from the prolonged fermentation of fish with salt, yielding a clear to amber-hued liquor rich in amino acids and aromatic compounds.
In practice
How to store
- On the counter
Can be kept at room temperature before opening in a cool, dark cupboard.
- In the fridge
Refrigerate after opening to preserve aroma and slow oxidation, where it will keep for up to one year.
- In the freezer
Freezing is unnecessary and not recommended, as high salinity prevents spoilage and freezing may dull aroma.
How to choose
Choose fish sauce with minimal ingredients, ideally only fish and salt. Look for clarity, a reddish-amber color, and labeling that specifies first-press or extra virgin extraction. Avoid overly dark or cloudy liquids, which may indicate excessive caramel coloring or protein breakdown.
What to swap in
Best swap
Anchovy paste diluted with water and a touch of soy sauce.
In a pinch
Light soy sauce with a splash of lemon juice.
Preparation
Use sparingly and early in cooking to allow volatile aromas to mellow, or add at the table in diluted form with citrus or sugar to balance salinity.
Don't toss it
Empty glass bottles can be washed thoroughly and reused, for example for homemade dressings kept in the fridge.
In the kitchen
Cooking
Fish sauce excels as a background seasoning in braises, stir-fries, and soups, where heat softens its pungency. It is equally vital in uncooked applications such as dipping sauces, where it is balanced with acidity and sweetness.
Goes well with
- Lime
- Palm Sugar
- Chili
- Garlic
- Ginger
- Pork
- Eggplant
What it is
Fish sauce is a liquid seasoning obtained from the prolonged fermentation of fish with salt, yielding a clear to amber-hued liquor rich in amino acids and aromatic compounds.
How it tastes
The attack is immediate and saline, striking the palate with brine and oceanic intensity. The mid-palate broadens into profound umami, recalling cured anchovy, dried shellfish, and aged cheese. The finish is long, warming, and faintly sweet, with lingering notes of iodine and caramelized protein.
Common questions
Does fish sauce taste fishy?
Is fish sauce healthy?
Can fish sauce be vegetarian?
Deep dive
3 min read
Varieties
The world of fish sauce is defined by geography, fish species, and fermentation philosophy.
Vietnamese nuoc mam
Often regarded as the benchmark, especially from Phu Quoc, where anchovies are harvested during peak oil content and layered with sea salt in wooden vats. The terroir of warm seas and mineral-rich salt yields a sauce of remarkable clarity and gentle sweetness, with a clean umami core.
Thai nam pla
Typically bolder and saltier, reflecting a preference for assertive seasoning. Anchovies and sometimes mackerel contribute a sharper aroma and brisk finish.
Filipino patis
Cloudier and more robust, frequently produced as a byproduct of bagoong fermentation. Its flavor leans toward savory bitterness and cooked fish.
Italian colatura di alici
Often described as an heir to Roman garum, though its modern method is usually traced to the medieval Amalfi coast, it is made from anchovies in Cetara, Campania. It is delicately filtered, amber, and strikingly elegant, with a saline purity shaped by Mediterranean sun and stone cellars.
History
Fish sauce belongs to one of humanity’s oldest culinary technologies: fermentation as preservation.
Ancient era
In classical Greece and Rome, garum and liquamen were ubiquitous condiments, produced by fermenting fish entrails with salt under the sun. Amphorae of garum traveled widely across the Roman Empire, and literary sources describe grades ranging from coarse to extravagantly refined.
Medieval era
In East and Southeast Asia, fish sauces developed independently of the Roman tradition, favoured by monsoon climates and abundant coastal fisheries; fermented fish condiments are recorded in China from at least the Han dynasty. In China and the Malay archipelago, fish sauces integrated into regional cuisines, often exchanged alongside spices and ceramics.
Modern era
Industrialization standardized production, yet artisanal practices survived. Today, fish sauce stands at the intersection of tradition and global gastronomy, embraced by chefs worldwide as a source of natural umami.
Science
Fish sauce fermentation relies on enzymatic autolysis rather than microbial action alone. Salt inhibits spoilage bacteria while allowing endogenous proteases to break proteins into free amino acids, notably glutamate, responsible for umami perception. Extended fermentation increases amino nitrogen content, a key quality metric, while Maillard reactions during aging contribute subtle sweetness and color.
Sourcing and ethics
Responsible fish sauce production depends on sustainable fisheries and transparent labeling. Overfishing of anchovy stocks threatens ecosystems, making certified sustainable sourcing essential. Traditional producers emphasize whole-fish utilization and long fermentation, reducing waste and honoring maritime heritage.