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
Tonkatsu sauce products. Bull-Dog brand, created in 1935 and still made today by Bull-Dog Sauce Co., Ltd., Hatogaya, Japan, inventor of tonkatsu sauce. Tonkatsu sauce is derived from Worcestershire sauce, with additional vegetables and fruits, such as tomatoes, prunes, dates, apples, lemon juice, carrots, onions, and celery, to better suit the Japanese palate. Tonkatsu sauce Tonkatsu sauce is a thick sauce commonly served over tonkatsu (breaded deep-fried pork cutlets). It is a high concentration version of Worcestershire sauce in Japan. It is determined by the JAS standard, over 2.0 Pa.s. The first Tonkatsu sauce was made in 1948 by Oliver Sauce Co.,