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