Fermentation quiz
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How does vodka reach 40% alcohol when wine cannot?
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More questions about Fermentation
These visible examples show the question style. LearnClash turns the full topic into ranked duels and spaced repetition.
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Why did Captain Cook carry sauerkraut on his voyages?
Answer: To prevent scurvy
Why: Cook's ship Endeavour set sail with 7,860 pounds of sauerkraut, enough for about two pounds per sailor each week.
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Where does the word ketchup come from?
Answer: A fish sauce
Why: By the mid-1700s British cooks made ketchup from mushrooms, anchovies or walnuts; tomato versions came only in the early 1800s.
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Which animal's milk is traditionally fermented into kumis?
Answer: Horse
Why: Fermented camel milk from the same steppes is a different drink with its own name, shubat.
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Which pizza topping is made by fermenting meat?
Answer: Pepperoni
Why: Bacteria in the meat make lactic acid that drops its pH below 5, which helps the dried sausage resist spoilage.
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What does the Latin verb at the root of 'ferment' mean?
Answer: To boil
Why: Fermenting juice froths with carbon dioxide released by yeast, so it bubbles much like a pot at a gentle boil.
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What bacteria species ferments natto?
Answer: Bacillus subtilis
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