Fish Sauce: Thailand’s Secret Ingredient

From Anchovies to Umami

Fish sauce is the heartbeat of Thai cooking. Just a few drops can transform a dish, adding depth, balance and the rich savory taste known as umami.

The finest fish sauces begin with just two ingredients: anchovies and sea salt. No crabs, no shellfish, no additional fish species—simply anchovies and salt.

The anchovies used in premium fish sauce are caught in the warm waters of the Gulf of Thailand, particularly along the coast of Rayong Province. Harvested by local fishing communities, they are brought ashore and carefully mixed with sea salt before beginning a slow natural aging process.

How is Fish Sauce made?

Producing quality fish sauce is a lesson in patience. Traditionally, the mixture is stored in large clay jars, where it slowly matures for many months.

Over time, naturally occurring enzymes unlock a remarkable depth of flavor, creating the rich aromas, savory complexity and unmistakable umami that define authentic Thai fish sauce. During this process, the liquid develops its distinctive amber color, exceptional clarity and concentrated flavor.

น้ำปลา (Nam Pla) means “fish water” in Thai.

Tradition, refined for consistency

SIAM fish sauce is fermented in modern food-grade tanks that ensure consistent food safety while preserving traditional methods. Once fermentation is complete, the fish sauce is filtered and bottled.

A small amount of sugar is added at this stage to balance flavor and achieve a consistent taste profile.

Our fish sauce is made exclusively from freshly caught anchovies. We never use old or deteriorated fish. To guarantee freshness, every batch of raw material is tested for histamine, a key indicator of freshness. The result is a fish sauce with a clean, pleasant aroma.

Particularly appealing to those discovering Thai cuisine, our fish sauce delivers authentic umami flavor without the overpowering fishy smell often associated with traditional fish sauces. Packed in our distinctive compact bottle, SIAM fish sauce is rich in umami and delivers outstanding flavor. Just a few drops are enough.

Fish Sauce Cooking: Essential Ingredient

Fish sauce is far more than a seasoning—it is one of the essential building blocks of flavor. Just as salt is found on tables around the world, fish sauce is a constant presence in Thai kitchens, from street food carts to family homes and restaurants.

Fish sauce is used to season, balance and enhance dishes throughout the cooking process. Unlike ordinary salt, fish sauce brings both saltiness and umami to a dish. This extra layer of savory flavor makes food taste richer, deeper and more satisfying, which is why fish sauce remains one of the most important seasonings in Thai cuisine.

One of the most common uses of fish sauce is in the classic Thai table dressing known as prik nam pla, a simple mixture of fish sauce, fresh lime juice and chopped chilies. A spoonful can instantly brighten salads, rice dishes, grilled meats and stir-fries.

Fish sauce is equally important in marinades and stir-fries. Combined with soy sauce, oyster sauce, pepper and a touch of sugar, it creates the savory foundation found in countless Thai dishes.

A Thai kitchen essential

Many chefs describe fish sauce as their “secret weapon.” When a dish feels like it is missing something, a few drops can often provide the final touch of umami. From soups and curries to salads and dipping sauces, its versatility extends far beyond traditional Thai recipes.

Perhaps the strongest testament to its importance is found on the streets of Bangkok, where large bottles of fish sauce can be seen at almost every food cart. Whether preparing noodles, stir-fries, soups or grilled dishes, vendors rely on it every day to deliver the distinctive balance of flavors that makes Thai cuisine so memorable.

Used sparingly, fish sauce rarely tastes fishy; instead, it enhances the natural flavors of other ingredients and adds an extra layer of delicious umami. During cooking, only a small amount is needed to add depth and complexity. The goal is not to make a dish taste of fish sauce, but to bring all the other flavors into perfect balance.

More than just a condiment, fish sauce is part of Thailand’s culinary identity. Whether used as a seasoning, a marinade, a dipping sauce or a finishing touch, it continues to bring depth, balance and unmistakable Thai character to every meal.

Time to cook!
FIRED UP THAI BEEF SALAD

Grilled beef, crisp vegetables, herbs and a bright fish sauce, lime and coconut sugar dressing come together in this fresh Thai salad.