Soy Sauce Trivia
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50 free Soy Sauce trivia questions with answers — food & drink quiz, new questions added Aug 2026.
Soy sauce is roughly 2,200 years old, and it is on restaurant tables from Tokyo to Lima. This soy sauce trivia quiz covers where it came from (Han-dynasty China, as a way to stretch expensive salt), how it is actually made (koji mould, brine and months of patient fermentation), and how it differs across Asia, from Japan's five official shoyu types to Indonesia's syrupy kecap manis and Korea's soup soy sauce. You will also find the food-science oddities: why it browns, why it can legally count as alcohol, why Europeans could not brew it for centuries, and how a 1961 dispenser bottle became a design classic. Questions range from easy to expert, and every answer is verified and cited to its reference page. Hungry for more? Try our other food and drink quizzes.
30 of 50 questions with answers and explanations. Play the quiz
Q 01In which country did soy sauce originate?
China
It appeared in its current form roughly 2,200 years ago and spread through East and Southeast Asia before becoming a global condiment.
Q 02During which Chinese dynasty was soy sauce created in its current form?
Western Han
Its precursor, soy paste (jiang), was listed on bamboo slips found at the Mawangdui archaeological site.
Q 03Which taste, besides saltiness, is soy sauce best known for?
Umami
The savoury depth comes from free amino acids, mainly glutamic acid, released as soy and grain proteins break down.
Q 04Which genus of mould is traditionally used to ferment soy sauce?
Aspergillus
The cultured mixture of soybeans, wheat and mould is called koji in Japan; A. oryzae and A. sojae are the main species used.
Q 05Historically, soy sauce began as a way to stretch which expensive commodity?
Salt
Zhou-dynasty cooks fermented fish with it and soybeans; by the Han the beans took over and fish sauce split off as its own condiment.
Q 06What is soy sauce called in Japan?
Shoyu
Buddhist practitioners arriving from China in the 7th century brought it along with vegetarianism.
Q 07How long is soy sauce shelf-stable, according to the reference?
Indefinitely
Its high salt and acidity keep microbes at bay, though it retains its quality longer when kept out of direct sunlight.
Q 08Which trading power began exporting Japanese shoyu in 1647?
Dutch East India Company
By 1737 its records list 75 large barrels shipped from Dejima to Batavia, 35 of which went on to the Netherlands.
Q 09What is soy sauce called in Korea?
Ganjang
The Samguk sagi records it being prepared, along with soybean paste, for King Sinmun's wedding in 683.
Q 10Why were Europeans long unable to make their own soy sauce?
They lacked the Aspergillus oryzae mould
Cookbooks instead offered imitations; a 1770 Swedish 'Soija' recipe used mushrooms flavoured with allspice and mace.
Q 11A 1770 Swedish soy-sauce substitute was flavoured with allspice and what?
Mace
The recipe for 'Soija' appeared in Cajsa Warg's popular household cookbook for young women.
Q 12Where did soy sauce production in the United States begin in 1905?
Territory of Hawaii
Yamajo Soy Co was renamed the Hawaiian Soy Company Ltd by 1909; locals in Hawaii still call the sauce by its Japanese name.
Q 13Which brand began selling hydrolysed-protein soy sauce in the US in 1933?
La Choy
Chemically hydrolysed sauce takes about three days to make instead of months, and fills most take-out packets today.
Q 21Which law can soy sauce run afoul of because of its fermentation?
Liquor control legislation
Yeasts convert some sugars to ethanol, so the finished sauce may contain more than 1% alcohol.
Q 22Which Chinese variety is thin, saltier and used mainly for seasoning?
Light (sheng chou)
The first pressing, tou chou, is sold at a premium the way extra virgin olive oil is.
Q 23What is often added to Chinese dark soy sauce to give it its distinctive appearance?
Caramel colour or molasses
Made from light soy sauce through prolonged ageing, it is richer, sweeter and less salty and is added mostly for colour.
Q 14What pejorative nickname did some Americans give soy sauce before the 1970s?
Beetle juice
The slur faded as authentic Chinese cuisine became popular, and had largely disappeared by 1976.
Q 15Which chemical reaction gives soy sauce its dark brown colour and much of its aroma?
Maillard browning
Free amino acids and simple sugars released by the mould's enzymes react together during brewing and ageing.
Q 16What is the fermenting mash of soybeans, wheat, salt and water called in Japanese brewing?
Moromi
It is stirred constantly for 90 to 180 days, and sometimes left in direct sunlight to speed up decomposition.
Q 17Roughly how salty is the brine in traditional high-salt fermentation?
17-20%
The salt selectively suppresses microbes, so only salt-loving anaerobes survive; the finished sauce is 14-18% salt.
Q 18How long does acid-hydrolysed 'chemical' soy sauce take to make?
About three days
It is cheaper and longer-lasting than brewed sauce, and is what usually fills the clear packets that come with take-out.
Q 19Which health-food product is essentially hydrolysed vegetable protein sold as a soy-sauce alternative?
Liquid aminos
They are marketed as low-sodium alternatives but are not necessarily low in sodium at all.
Q 20Which compound is most abundant among the amino acids in Chinese soy sauce?
Glutamic acid
Aspartic acid, alanine and leucine follow; the amino-acid nitrogen content is what China uses to grade soy sauce.
Q 24Which fungus's broth is mixed into Chinese cǎogū lǎochōu dark soy?
Straw mushroom
The broth of Volvariella volvacea is mixed in during finishing and the sauce is then exposed to the sun.
Q 25Shrimp soy sauce, finished with sugar and baijiu, is a specialty of which city?
Suzhou
Fresh soy sauce is simmered with fresh shrimp and spices before being finished with the distilled liquor.
Q 26What is soy sauce called in the Philippines?
Toyo
Mixed with calamansi juice it becomes toyomansi, a cousin of Japanese ponzu, and it is a key ingredient in adobo.
Q 27The Indonesian word for soy sauce, kecap, is a cognate of which English word?
Ketchup
Kecap is a catch-all for fermented sauces there; kecap Inggris, 'English sauce', is Worcestershire sauce.
Q 28What gives Indonesian kecap manis its thick, treacle-like sweetness?
Palm sugar
The sweet variety accounts for an estimated 90 percent of Indonesia's soy sauce production and flavours nasi goreng and satay.
Q 29How many main types of shoyu does the Japanese Agricultural Standard recognise?
Five
They are koikuchi, usukuchi, tamari, saishikomi and shiro, sold in three grades and three quality levels.
Q 30Which type makes up over 80% of Japan's soy sauce production?
Koikuchi
The 'thick taste' sauce from the Kanto region is made from roughly equal parts soybean and wheat and is the typical Japanese soy sauce.