Fish sauce are made with anchovies, mackerel, scabbard fish and salt. The bigger the fish, the more mercury you might expect, especially if predator fish like scabbard fish. They do not have any additives like sugar, hydrolyzed protein, or preservatives. Vietnamese prefer sauces without a strong smell, and transparent with a deep golden amber color. "First press" fish sauce, meaning the sauce is bottled from the first time the fermenting barrels are drained, also indicates quality. Lastly, when measuring the nitrogen level of fish sauces (N), most fish sauce on the market falls within the mid 20N range. Anything over 30N is
Fish soup Fish soup Fish soup is a food made by combining fish or seafood with vegetables and stock, juice, water, or another liquid. Hot soups are additionally characterized by boiling solid ingredients in liquids in a pot until the flavors are extracted, forming a broth. Traditionally, soups are classified into two main groups: "clear soups" and "thick soups". The established French classifications of clear soups are "bouillon" and "consommé". Thick soups are classified depending upon the type of thickening agent used: "bisques" are made from puréed shellfish or vegetables thickened with "cream"; cream soups may be thickened with béchamel sauce; and