CHIN-SU fish sauce is a Vietnamese anchovy condiment from the No. 1 fish sauce manufacturer in Vietnam, made from East Sea anchovies and aged according to a tradition passed down through generations of Vietnamese coastal communities. There are five variants in the line, ranging from pure cooking bases to instant dipping sauces, all bottled in glass for everyday use in the kitchen and at the table.
Why CHIN-SU Leads Vietnamese Fish Sauce in the US?
CHIN-SU fish sauce stands out in the US market because it is built around three core Vietnamese fish sauce traditions: anchovies from Phu Quoc, the pearl island of the East Sea long famed for Vietnam's finest fish sauce, immediate boat salting at the point of catch, and coastal aging methods passed down through generations. Together, these factors create a well-rounded umami profile that many Southeast Asian fish sauces, made from different anchovy sources and using different production methods, do not fully replicate.
CHIN-SU selects plump, firm anchovies from the East Sea, prized for their balanced depth, savory aroma, and clean umami strength. Hand-grading the catch this way sets CHIN-SU apart from producers who simply use whatever anchovies come off the boat, and it gives the sauce a rounded profile that works for both cooking and direct dipping. This differs from many Thai-style fish sauces, which often use a lighter, more pungent anchovy base and may follow a shorter aging window.
In addition, CHIN-SU employs a boat-salting practice that helps preserve the quality of the anchovies from the moment of capture. Instead of waiting until the fish are transported to shore, the freshly caught anchovies are salted directly on the fishing boats. This helps preserve freshness, supports better protein integrity before aging begins, and sets the foundation for controlled aging from the first day. The 3-to-1 fish-to-salt ratio, the golden ratio of traditional Vietnamese fish sauce, is applied right at sea as part of this process.
The CHIN-SU fish sauce line now includes five variants, each designed for a different use case while keeping Vietnamese anchovy aging at the center.
- CHIN-SU Vietnamese Fish Sauce follows a centuries-old coastal aging method shaped by generations of Vietnamese fish sauce artisans.
- CHIN-SU Phu Quoc Fish Sauce goes further with anchovies aged for 12 months in traditional wooden barrels on Phu Quoc Island, the pearl island of the East Sea, whose waters yield some of the finest cá cơm and whose artisans hold a 200-year fish sauce heritage recognized by a Geographic Indication (GI).
- CHIN-SU Lobster Fish Sauce uses a Phu Quoc-origin anchovy base blended with lobster flavor for a rounder, naturally sweet finish.
- CHIN-SU Salmon Fish Sauce uses barrel-aged anchovy extract at 12 degrees protein, creating a lighter, smoother option for table dipping.
- CHIN-SU Sweet and Sour Dipping Fish Sauce turns the barrel-aged base into a ready-to-eat dipping sauce, with chili and garlic already balanced into the formula.
CHIN-SU fish sauce is bottled in glass across the line. Glass holds the anchovy character steady over time better than plastic, and its clear, elegant look earns a place on any table, from a weeknight family dinner to a festive gathering. The result is a Vietnamese fish sauce line that covers everyday cooking, marinades, soups, dipping sauces, and ready-to-use table condiments while staying rooted in Vietnam’s fish sauce craft.
What Are CHIN-SU Fish Sauce Ingredients?
Every CHIN-SU fish sauce starts from three things: East Sea anchovy, salt, and time. Each additional ingredient is used either to concentrate that anchovy base for a specific cooking purpose or to add a complementary flavor that anchovy alone does not provide.
CHIN-SU Vietnamese Fish Sauce and CHIN-SU Phu Quoc Fish Sauce are built primarily on anchovy and salt, with aging doing most of the flavor work. CHIN-SU Salmon Fish Sauce adds salmon flavor and additional flavor enhancers to the anchovy base, creating a softer, more approachable profile. CHIN-SU Lobster Fish Sauce adds lobster flavor to a Phu Quoc-origin anchovy base, resulting in a naturally sweet finish. CHIN-SU Sweet and Sour Dipping Fish Sauce blends the barrel-aged anchovy base with chili, garlic, sugar, vinegar, and natural flavor to create a ready-to-use “nước chấm” (dipping sauce).
What Is Protein Grade in Vietnamese Fish Sauce?
Protein grade in Vietnamese fish sauce is expressed as degrees nitrogen (°N). It measures the total nitrogen content per liter and indicates the concentration of the anchovy base. In general, a higher °N means a stronger anchovy base, deeper umami, and a more assertive aging flavor.
The measurement is simple: 20°N means 20 grams of total nitrogen per liter. In fish sauce, most of the nitrogen comes from amino acids formed when anchovy proteins break down during aging. Because of that, the °N value indicates how much aged fish is present in the sauce. More fish, more time, and more concentration usually create a deeper flavor profile.
For practical use, °N helps you know how much fish sauce to pour and where to use it. CHIN-SU Vietnamese Fish Sauce at 20°N works well in cooking portions, where one tablespoon can add measurable depth to a pot of phở broth. CHIN-SU Salmon Fish Sauce at 12°N works better for dipping, adding savory balance without overpowering the dish.
What Does CHIN-SU Fish Sauce Taste Like?
CHIN-SU fish sauce starts with the savory depth of Vietnamese anchovy aging. Each variant then develops a different taste profile based on its protein grade, added flavor components, and intended use. The line ranges from bold, pure, and cooking-focused to lighter, sweeter, and ready for direct dipping.
- CHIN-SU Vietnamese Fish Sauce: Robust umami, balanced saltiness, savory-forward taste, and a clean finish without bitterness.
- CHIN-SU Phu Quoc Fish Sauce: Bold, pure anchovy flavor with deep amber richness, strong umami, and a clean aged finish.
- CHIN-SU Lobster Fish Sauce: Savory and slightly sweet, with a rounder finish from lobster flavor and a cleaner aftertaste than straight anchovy sauce.
- CHIN-SU Salmon Fish Sauce: Softer, lighter, and more approachable, with gentle sweetness from salmon flavor that smooths the anchovy edge.
- CHIN-SU Sweet and Sour Dipping Fish Sauce: Balanced sweet, sour, savory, and mildly spicy taste with chili and garlic notes.
How to Use CHIN-SU Fish Sauce?
CHIN-SU fish sauce can be used in six main ways: as an instant dipping sauce, for phở and noodle seasoning, in marinades, in stir-fries, in braised dishes, and as a salt substitute in everyday cooking. The best variant depends on whether you are cooking with fish sauce or serving it directly at the table.
For cooking, CHIN-SU Vietnamese Fish Sauce and CHIN-SU Phu Quoc Fish Sauce are the strongest choices. Add 1 tbsp (0.5 fl oz / 15ml) to phở broth, braised dishes, stir-fries, or marinades to replace salt while adding deeper umami from fermented anchovies. In marinades, fish sauce helps season protein more deeply and creates a savory layer that holds up well under high heat. For pasta sauces, start with half a tablespoon to add umami depth without making the dish taste Vietnamese. A good starting rule is to use half the amount of fish sauce you would normally use for salt, then adjust to taste.
For table dipping, choose based on how much preparation you want. CHIN-SU Sweet and Sour Dipping Fish Sauce is ready to use: open, pour into a bowl, and serve with spring rolls, fresh rolls, noodle salads, or grilled meats. CHIN-SU Lobster Fish Sauce and CHIN-SU Salmon Fish Sauce also work straight from the bottle. Lobster Fish Sauce pairs well with seafood and grilled meats, while Salmon Fish Sauce suits bánh xèo, steamed dishes, and lighter proteins.
If you want to mix your own dipping sauce with CHIN-SU Vietnamese Fish Sauce or CHIN-SU Phu Quoc Fish Sauce, combine 2 tablespoons fish sauce, 1 tablespoon lime juice, 1 tablespoon water, 1 teaspoon sugar, minced garlic, and sliced fresh chili. This creates a balanced Vietnamese dipping sauce with salty, sour, sweet, savory, and spicy notes.
Which CHIN-SU Fish Sauce Should You Buy?
If you cook Vietnamese food often, start with CHIN-SU Vietnamese Fish Sauce at 20°N. It works across broth, marinades, stir-fries, and everyday seasoning. For the purest two-ingredient option, choose CHIN-SU Phu Quoc Fish Sauce.
For direct table dipping, choose by flavor. Lobster Fish Sauce pairs well with seafood and grilled meats, while Salmon Fish Sauce is lighter, softer, and more approachable for spring rolls and fresh dishes.
For ready-to-use “nước chấm” (dipping sauce), choose CHIN-SU Sweet and Sour Dipping Fish Sauce. It requires no mixing, but it has 17g carbs per 2 tbsp / 1 fl oz / 30ml, so it is not suited for strict keto. For keto, choose Vietnamese, Phu Quoc, Lobster, or Salmon, each with 1g carb or less per tablespoon.
How to Store CHIN-SU Fish Sauce?
Store CHIN-SU fish sauce in a cool, dry place away from direct sunlight before opening. After opening, close the cap tightly and refrigerate. These instructions apply across all five variants.
The glass bottle in every CHIN-SU fish sauce variant holds the anchovy fermentation character more stably than plastic over time. Glass doesn't interact with the acidic anchovy base and helps maintain consistent aroma throughout the bottle's shelf life. Keep each bottle away from heat sources and strong-smelling food items stored nearby.
How Long Does CHIN-SU Fish Sauce Last?
CHIN-SU Vietnamese Fish Sauce has a shelf life of 12 months from the date of manufacture. CHIN-SU Salmon Fish Sauce has a shelf life of 12 months from the date of manufacture. Check the packaging of Lobster, Phu Quoc, and Sweet and Sour variants for their specific manufacture dates.
