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