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Preservation methods (drying, freezing, canning) MCQs

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1. What is the primary purpose of drying food?





2. Sun drying is most effective in which type of climate?





3. Which food is commonly dried using the spray drying method?





4. What is the main disadvantage of sun drying?





5. Which of the following is a commonly used method for drying herbs?





6. Freeze drying is also known as:





7. What is the primary advantage of freeze drying over other drying methods?





8. Which of the following foods is not typically dried?





9. What type of drying method uses a rotating drum?





10. The primary objective of drying food is to:





11. What is the main benefit of freezing food?





12. Which temperature range is typically used for freezing food?





13. Which of the following is a common problem associated with freezing food?





14. What is the primary cause of freezer burn?





15. Blanching vegetables before freezing helps to:





16. What is the ideal storage temperature for frozen food to maintain quality?





17. Which of the following foods should not be frozen?





18. The formation of large ice crystals in frozen food is primarily due to:





19. Which packaging material is commonly used to prevent freezer burn?





20. What is the best method to defrost frozen food?





21. What is the primary purpose of canning food?





22. Which microorganism is a major concern in canning low-acid foods?





23. What is the typical pH range of high-acid foods suitable for water bath canning?





24. What type of canning is recommended for low-acid foods?





25. Which of the following is a key step in the canning process to ensure safety?





26. Which food is typically canned using the water bath method?





27. What is the main advantage of pressure canning over water bath canning?





28. Which gas is commonly used in modified atmosphere canning to preserve food?





29. What is the primary reason for using glass jars in home canning?





30. Which of the following is a sign of spoilage in canned food?





31. The process of removing water from food to inhibit the growth of microorganisms is called:





32. Which preservation method involves heating food to a specific temperature to kill pathogens and then sealing it in containers?





33. The main advantage of freezing food is:





34. Which drying method involves the sublimation of ice from frozen food?





35. Which of the following is a key consideration in choosing a preservation method?





36. What is the main purpose of blanching vegetables before freezing?





37. What is the recommended method for defrosting frozen food safely?





38. In the canning process, what is the purpose of using a pressure canner?





39. Which of the following preservation methods is most suitable for preserving fruits and vegetables at home?





40. For which type of food is canning considered least effective?





41. What is a common indicator that canned food has not been processed correctly?





42. Which preservation method involves the use of chemical preservatives to extend shelf life?





43. What is the primary goal of using vacuum sealing in food preservation?





44. In which preservation method is high temperature combined with rapid cooling used?





45. What is a key factor in preventing microbial growth in dried foods?





46. Which method is often used to extend the shelf life of baked goods?





47. Which of the following methods is NOT used for preserving meat?





48. What does the term ‘blanching’ refer to in the context of food preservation?





49. Which food preservation method is most effective for maintaining the flavor and texture of food?





50. Which of the following is a disadvantage of canning?





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