How to ferment vegetables
  • 1. What is the primary purpose of fermenting vegetables?
A) Preservation and flavor enhancement
B) Adding sugar
C) Removing all nutrients
D) Cooking them quickly
  • 2. Which microorganism is primarily responsible for vegetable fermentation?
A) Yeast
B) Lactic acid bacteria
C) Salmonella
D) Mold
  • 3. What is the ideal salt concentration for most vegetable ferments?
A) 50%
B) 0.1%
C) 10-15%
D) 2-5%
  • 4. What does salt do during vegetable fermentation?
A) Encourages mold growth
B) Adds sweetness
C) Inhibits harmful bacteria and draws out moisture
D) Neutralizes acids
  • 5. Why is it important to keep vegetables submerged in brine during fermentation?
A) To stop the fermentation process
B) To add color
C) To make them sweeter
D) To prevent mold growth
  • 6. What type of container is best for fermenting vegetables?
A) Aluminum
B) Cardboard
C) Glass or food-grade plastic
D) Copper
  • 7. What is the ideal temperature range for vegetable fermentation?
A) 100-110°F (38-43°C)
B) Below 0°F (-18°C)
C) 32-40°F (0-4°C)
D) 65-72°F (18-22°C)
  • 8. How long does it typically take to ferment vegetables?
A) 1 hour
B) 1 day
C) 6 months
D) 1-4 weeks
  • 9. What is the purpose of an airlock or fermentation weight?
A) To allow gases to escape while preventing air from entering
B) To measure pH levels
C) To add flavor
D) To increase temperature
  • 10. What is the hissing sound during fermentation caused by?
A) Bacteria fighting
B) Water boiling
C) Carbon dioxide production
D) Salt dissolving
  • 11. What does the term 'anaerobic' mean in the context of fermentation?
A) With salt
B) With oxygen
C) Without oxygen
D) With heat
  • 12. What is kahm yeast?
A) A harmless film that can form on the surface
B) A type of salt
C) A dangerous mold
D) A beneficial bacteria
  • 13. What is a common sign that vegetables are properly fermented?
A) Slimy texture
B) Metallic smell
C) Sweet taste
D) Sour and tangy taste
  • 14. What vegetable is commonly used to make sauerkraut?
A) Cucumbers
B) Carrots
C) Cabbage
D) Beets
  • 15. What vegetable is commonly used to make kimchi?
A) Spinach
B) Lettuce
C) Napa cabbage
D) Kale
  • 16. Why should you avoid using iodized salt for fermentation?
A) It can inhibit bacterial growth
B) It makes the vegetables sweeter
C) It changes the color of the vegetables
D) It's too expensive
  • 17. What does the term 'wild fermentation' refer to?
A) Fermentation with no salt
B) Fermentation using added starter cultures
C) Fermentation using naturally occurring microorganisms
D) Fermentation at high temperatures
  • 18. What is the role of whey in some vegetable fermentation recipes?
A) To prevent fermentation
B) To add sweetness
C) To change the color
D) To provide a starter culture of lactic acid bacteria
  • 19. Which of these is NOT a common spice used in vegetable fermentation?
A) Vanilla
B) Chili peppers
C) Garlic
D) Ginger
  • 20. What should you do if you see fuzzy mold growing on your ferment?
A) Just scrape off the mold
B) Discard the entire batch
C) Continue fermenting
D) Add more salt
  • 21. What is the term for the cloudy sediment at the bottom of a fermenting jar?
A) Kefir
B) Kombucha
C) Scum
D) Lee
  • 22. Which vitamin is fermentation known to increase in some vegetables?
A) Vitamin B12
B) Vitamin D
C) Vitamin A
D) Vitamin C
  • 23. What type of salt is best for vegetable fermentation?
A) Sea salt or kosher salt
B) Table salt
C) Epsom salt
D) Iodized salt
  • 24. What is a benefit of fermented vegetables for gut health?
A) They destroy gut bacteria
B) They contain high amounts of saturated fat
C) They contain high amounts of sugar
D) They contain probiotics
  • 25. What is the purpose of burping a fermenting jar?
A) To add more salt
B) To release built-up carbon dioxide
C) To add oxygen
D) To check the temperature
  • 26. How does fermentation affect the texture of vegetables?
A) They become harder
B) They become slimy
C) They remain the same
D) They become softer
  • 27. After fermentation, how should vegetables be stored?
A) At room temperature
B) In a sunny location
C) In the refrigerator
D) In the freezer
  • 28. What is the main acid produced during lactic acid fermentation?
A) Sulfuric acid
B) Acetic acid
C) Lactic acid
D) Citric acid
  • 29. What happens to the pH level during vegetable fermentation?
A) It increases (becomes more alkaline)
B) It decreases (becomes more acidic)
C) It stays the same
D) It becomes neutral
  • 30. What is a 'fermentation crock'?
A) A type of salt
B) A type of spice
C) A type of mold
D) A specialized jar designed for fermentation
Created with That Quiz — where test making and test taking are made easy for math and other subject areas.