Why is 40°N Fish Sauce so Special?
The Degrees N measure is an industry standard to measure the number of grams of nitrogen per liter of fish sauce — an indicator which relates to the protein level. Simply put, the higher quality the fish sauce, the higher the N degree. Good-quality fish sauces are greater than 30°N, as the flavor of the fish sauce becomes more rich and complex with larger N designation. You can find out even more about Red Boat's superior quality and traditional methods here.