ThatQuiz Test Library Take this test now
How to preserve food
Contributed by: Sadler
  • 1. Which of these is NOT a common method of food preservation?
A) Canning
B) Freezing
C) Digestion
D) Drying
  • 2. What is the primary goal of food preservation?
A) Change the flavor
B) Make food more colorful
C) Increase cost
D) Prevent spoilage
  • 3. What does canning do to preserve food?
A) Increases acidity
B) Creates an airtight seal
C) Changes the texture
D) Adds vitamins
  • 4. What is the main principle behind drying food?
A) Increasing temperature
B) Removing moisture
C) Adding sugar
D) Adding salt
  • 5. Which of these foods is commonly preserved through pickling?
A) Bananas
B) Apples
C) Cucumbers
D) Steak
  • 6. What does freezing food primarily prevent?
A) Enzyme activity
B) Oxidation
C) Color fading
D) Microbial growth
  • 7. What substance is typically used in smoking food for preservation?
A) Wood smoke
B) Sugar
C) Oil
D) Vinegar
  • 8. What is irradiation used for in food preservation?
A) Adding flavor
B) Changing texture
C) Increasing nutrients
D) Killing microorganisms
  • 9. Which gas is sometimes used in modified atmosphere packaging (MAP)?
A) Nitrogen
B) Hydrogen
C) Oxygen
D) Methane
  • 10. What is the role of salt in curing meat?
A) Increases moisture
B) Tenderizes meat
C) Adds sweetness
D) Inhibits bacterial growth
  • 11. Which type of acid is commonly used in pickling?
A) Lactic acid
B) Ascorbic acid
C) Acetic acid
D) Citric acid
  • 12. What temperature range is generally considered the 'danger zone' for food safety?
A) 0°F - 32°F
B) 150°F - 212°F
C) 40°F - 140°F
D) 212°F - 250°F
  • 13. Which preservation method relies on removing air to prevent oxidation and spoilage?
A) Vacuum packing
B) Brining
C) Fermentation
D) Pasteurization
  • 14. What effect does sugar have on the water activity of food?
A) Increases it
B) Has no effect
C) Decreases it
D) Changes its pH
  • 15. What process involves heating liquids to kill bacteria and then cooling them?
A) Dehydration
B) Sterilization
C) Pasteurization
D) Blanching
  • 16. Which preservation method often uses a combination of salt, sugar, and spices?
A) Curing
B) Drying
C) Freezing
D) Canning
  • 17. What is the purpose of blanching vegetables before freezing them?
A) To change the texture
B) To remove vitamins
C) To add flavor
D) To inactivate enzymes
  • 18. Which type of food is most often preserved by fermentation?
A) Apples
B) Cabbage
C) Bread
D) Beef
  • 19. What is the role of microbes in food fermentation?
A) Produce acids
B) Eliminate nutrients
C) Increase moisture
D) Add sugar
  • 20. Which fruit is commonly preserved using the jam-making process?
A) Potatoes
B) Strawberries
C) Carrots
D) Lettuce
  • 21. What is the purpose of adding pectin to jam?
A) To help it gel
B) To prevent spoilage
C) To add flavor
D) To increase acidity
  • 22. Which of the following methods best preserves the nutritional value of food?
A) Drying
B) Pickling
C) Canning
D) Freezing
  • 23. What is the benefit of using a pressure canner for low-acid foods?
A) Uses less water
B) Reaches higher temperatures
C) Is faster
D) Preserves color better
  • 24. What type of container is generally NOT recommended for freezing liquids?
A) Glass jar filled to the top
B) Silicone container
C) Plastic freezer bag
D) Rigid plastic container
  • 25. What is 'water activity' in relation to food preservation?
A) Total water content
B) Available water for microbial growth
C) Water pH
D) Water temperature
  • 26. What is the main ingredient in brining?
A) Salt
B) Vinegar
C) Oil
D) Sugar
  • 27. Which of these is NOT a sign of spoilage in canned goods?
A) Rusting can
B) Slight cloudiness
C) Bulging lid
D) Foul odor
  • 28. What does 'aseptic packaging' mean?
A) Packaging made from recycled materials
B) Food packaged without preservatives
C) Packaging that is easy to open
D) Sterilized food in a sterilized container
  • 29. Why is it important to properly label and date preserved food?
A) To improve appearance
B) To track storage time
C) To increase sales
D) To add nutritional information
  • 30. What is a common ingredient used in preserving citrus fruits?
A) Oil
B) Salt
C) Sugar
D) Vinegar
Created with That Quiz — where test making and test taking are made easy for math and other subject areas.