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How to ferment foods naturally for preservation - Quiz
Contributed by: Kay
  • 1. What is the primary goal of food fermentation?
A) Cooking food faster
B) Making food sweeter
C) Preservation and flavor development
D) Removing all bacteria
  • 2. What microorganisms are most commonly involved in fermentation?
A) Only bacteria
B) Only yeasts
C) Viruses and parasites
D) Bacteria, yeasts, and molds
  • 3. What does anaerobic mean?
A) Without sugar
B) With oxygen
C) Without oxygen
D) With salt
  • 4. What is the purpose of salt in many vegetable ferments?
A) To speed up the fermentation process
B) To inhibit undesirable bacteria and draw out moisture
C) To add flavor only
D) To kill all bacteria
  • 5. What is brine?
A) Sugar solution
B) Salt water solution
C) Vinegar solution
D) Oil solution
  • 6. What gas is commonly produced during vegetable fermentation?
A) Oxygen
B) Carbon dioxide
C) Methane
D) Nitrogen
  • 7. Why is it important to keep vegetables submerged in brine during fermentation?
A) To make the vegetables softer
B) To prevent mold growth and spoilage
C) To add more flavor
D) To speed up fermentation
  • 8. What is the role of lactic acid bacteria in fermentation?
A) Produces acetic acid
B) Produces lactic acid, inhibiting spoilage organisms
C) Breaks down fiber
D) Produces alcohol
  • 9. Which of these is a common fermented vegetable?
A) Steamed broccoli
B) Sauerkraut
C) Boiled potatoes
D) Roasted carrots
  • 10. What is a fermentation crock?
A) A type of spoon
B) A type of oven
C) A cleaning tool
D) A specialized container for fermentation
  • 11. What is 'wild' fermentation?
A) Fermentation with alcohol
B) Fermentation in a forest
C) Fermentation using naturally occurring microbes
D) Fermentation using only commercial cultures
  • 12. What is the approximate ideal temperature range for fermenting most vegetables?
A) 80-90°F (27-32°C)
B) 100-110°F (38-43°C)
C) 60-75°F (15-24°C)
D) 32-40°F (0-4°C)
  • 13. What is the purpose of a weight in vegetable fermentation?
A) To speed up fermentation
B) To make the vegetables heavier
C) To add flavor
D) To keep vegetables submerged below the brine
  • 14. What does a Kahm yeast film indicate on a ferment?
A) Indicates the ferment is done
B) Normal and harmless, can be removed
C) Indicates spoilage
D) Indicates the ferment is extra nutritious
  • 15. How does fermentation extend the shelf life of food?
A) By adding preservatives
B) By drying the food
C) By freezing the food
D) By creating an acidic environment that inhibits spoilage bacteria
  • 16. What are some health benefits associated with consuming fermented foods?
A) Increased risk of food poisoning
B) Increased blood sugar
C) Improved gut health and digestion
D) Decreased energy levels
  • 17. Which of these is a fermented dairy product?
A) Yogurt
B) Milk
C) Ice cream
D) Butter
  • 18. What is SCOBY in kombucha making?
A) Simple Culture Of Beverages Yearly
B) Sweet Coffee Or Black Yogurt
C) Symbiotic Culture Of Bacteria and Yeast
D) Sour Culture Of Berries Yearly
  • 19. What is the primary sugar source used in kombucha fermentation?
A) Maple syrup
B) Honey
C) Artificial sweeteners
D) Cane sugar
  • 20. What is a common flavor added during the second fermentation of kombucha?
A) Oil
B) Vinegar
C) Fruit
D) Salt
  • 21. Which of the following is a fermented soy product?
A) Tofu
B) Miso
C) Soy sauce
D) Soy milk
  • 22. What is koji?
A) A type of seaweed
B) A type of spice
C) A mold used to ferment grains
D) A type of salt
  • 23. What is the purpose of using an airlock during fermentation?
A) To keep the ferment cold
B) To add air to the fermentation
C) To allow gas to escape while preventing air from entering
D) To speed up the fermentation process
  • 24. Why is it important to use clean equipment when fermenting foods?
A) To save time
B) To make the food taste better
C) To speed up the fermentation process
D) To prevent the growth of harmful bacteria
  • 25. What does pH measure?
A) Sugar content
B) Acidity or alkalinity
C) Salt content
D) Temperature
  • 26. What pH level is generally considered safe for long-term fermented vegetable storage?
A) Below 4.6
B) Around 6
C) Above 7
D) Around 8
  • 27. What is the role of whey in some fermentation processes?
A) Adds sweetness
B) Inhibits all bacterial growth
C) Adds bitterness
D) Provides beneficial bacteria and enzymes
  • 28. Which of these is a fermented beverage?
A) Juice
B) Soda
C) Kefir
D) Iced tea
  • 29. What is the 'pellicle' that forms on some ferments?
A) A layer of oil
B) A layer of salt
C) A type of mold
D) A cellulose mat formed by bacteria or yeast
  • 30. What does the term 'lacto-fermentation' refer to?
A) Fermentation without salt
B) Fermentation of milk only
C) Fermentation by lactose
D) Fermentation by lactic acid bacteria
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