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