Food Preservation quiz
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Which salad item loses flavor in the fridge?
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More questions about Food Preservation
These visible examples show the question style. LearnClash turns the full topic into ranked duels and spaced repetition.
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What does freezer burn do to food?
Answer: Dries it out
Why: The snowy crystals inside a freezer-burned bag can be the food's own water, which escaped from its surface as vapor.
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What metal are tin cans mostly made of?
Answer: Steel
Why: Steel is magnetic, so recycling plants pull tin cans out with magnets, while aluminium cans need a different machine.
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About what share of honey is water?
Answer: About 17%
Why: Bees get honey that dry by fanning their wings over the nectar until much of its water evaporates.
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What do many Korean homes have a separate fridge for?
Answer: Kimchi
Why: Kimchi fridges hold a steady temperature and humidity, imitating the cold earth around the clay pots once buried to store kimchi.
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Which drink was pasteurization first invented for?
Answer: Wine
Why: Pasteur heated wine to only about 50 to 60°C, enough to kill the spoilage microbes without boiling it.
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Who invented canning in Napoleonic France?
Answer: Nicolas Appert
Why: The reason Appert's jars worked stayed unknown until Louis Pasteur showed, about 50 years later, that microbes spoil food.
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