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How to ferment native fruits for food preservation
Contributed by: Kay
  • 1. What is the primary purpose of fermenting fruits?
A) Color Enhancement
B) Increasing Fiber
C) Sweetening
D) Preservation
  • 2. Which microorganism is primarily responsible for fruit fermentation?
A) Lactic Acid Bacteria
B) Virus
C) Mold
D) Yeast (in certain cases)
  • 3. What is the role of salt in fruit fermentation?
A) Neutralizes acids
B) Speeds up fermentation
C) Inhibits undesirable bacteria
D) Adds sweetness
  • 4. What is the ideal temperature range for most fruit fermentations?
A) 100-110°F (38-43°C)
B) 60-75°F (15-24°C)
C) 80-90°F (27-32°C)
D) 32-40°F (0-4°C)
  • 5. What type of container is best for fruit fermentation?
A) Copper
B) Unlined ceramic
C) Glass or food-grade plastic
D) Aluminum
  • 6. Why is it important to keep fruits submerged during fermentation?
A) To prevent mold growth
B) To increase acidity
C) To speed up fermentation
D) To prevent nutrient loss
  • 7. What is the role of an airlock in fruit fermentation?
A) To filter out bacteria
B) To keep the temperature constant
C) To add oxygen to the fermentation
D) To allow gases to escape while preventing oxygen entry
  • 8. What does 'inoculation' mean in the context of fermentation?
A) Adding salt
B) Adding sugar
C) Adding spices
D) Adding starter cultures
  • 9. What is a 'brine' in fermentation?
A) A solution of sugar and water
B) A solution of salt and water
C) A solution of lemon juice and water
D) A solution of vinegar and water
  • 10. Which of these is a potential sign of spoilage during fermentation?
A) Mold growth
B) Bubbling
C) Cloudiness
D) Sediment formation
  • 11. What is the purpose of 'burping' a fermentation jar?
A) To release built-up gases
B) To stir the contents
C) To check the temperature
D) To add more oxygen
  • 12. Which fruit is commonly fermented into sauerkraut-like product?
A) Banana
B) Orange
C) Apple
D) Mango
  • 13. What is the benefit of using whey in fruit fermentation?
A) Adds color
B) Adds fiber
C) Adds beneficial bacteria
D) Adds sweetness
  • 14. What is a common ratio of salt to water for a basic fruit fermentation brine?
A) 0.5% salt
B) 2-5% salt
C) No salt needed
D) 10-15% salt
  • 15. Which native fruit is suitable for pickling through lacto-fermentation?
A) Avocado
B) Ripe Banana
C) Ripe Mango
D) Green Papaya
  • 16. How does fermentation affect the vitamin content of fruits?
A) Can increase certain vitamins
B) Always decreases vitamin content
C) Only affects water-soluble vitamins
D) Has no effect on vitamins
  • 17. What is the role of sugar in fruit fermentation?
A) Neutralizes acids
B) Adds structure to the product
C) Provides food for microorganisms
D) Inhibits microbial growth
  • 18. What is the 'bloom' on some fruits, and should it be removed before fermentation?
A) A natural wax coating, leave it on.
B) A pesticide residue, remove it.
C) A type of mold, remove it.
D) Added preservative, remove it.
  • 19. What type of salt should be avoided in fermentation?
A) Pickling salt
B) Kosher salt
C) Sea salt
D) Iodized salt
  • 20. What is a sign that fermentation is complete?
A) Reduced bubbling
B) Brighter color
C) Formation of more mold
D) Increased bubbling
  • 21. Can you ferment overripe fruits?
A) Yes, they always ferment faster
B) Only if cooked first
C) No, they are always unsuitable
D) Yes, but monitor closely for spoilage
  • 22. What is the role of spices like ginger or chili in fruit fermentation?
A) Add flavor and antimicrobial properties
B) Speed up fermentation
C) Neutralize acidity
D) Preserve color
  • 23. What is the 'lacto' in 'lacto-fermentation' referring to?
A) Lactose sugar
B) Lactobacillus bacteria
C) Lactic acid
D) Milk products
  • 24. Why is it important to use clean equipment in fruit fermentation?
A) To prevent contamination
B) To increase acidity
C) To improve flavor
D) To speed up fermentation
  • 25. How long does fruit fermentation typically take?
A) Months to years
B) Several days to weeks
C) A few hours
D) 1-2 days
  • 26. What happens to the pH level of fruit during fermentation?
A) It decreases (becomes more acidic)
B) It fluctuates randomly
C) It stays the same
D) It increases (becomes more alkaline)
  • 27. How should fermented fruits be stored after fermentation?
A) At room temperature
B) In a warm place
C) Refrigerated
D) Frozen
  • 28. What is a common fruit that can be fermented into a vinegar?
A) Coconut
B) Apple
C) Banana
D) Mango
  • 29. What does it mean to 'backslop' in fermentation?
A) Using some of a previous batch to start a new one
B) Filtering the ferment
C) Adding sugar after fermentation
D) Reversing the fermentation process
  • 30. What is the main reason for weighting the fruits down with a weight during fermentation?
A) To speed up the fermentation process.
B) To prevent the jar from cracking.
C) To slow down the fermentation process.
D) To keep the fruit submerged under the brine
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