FOOD-STORAGE-PPT

Food Storage

  • Importance of proper food storage:

    • Protects food from contaminants like flies and dust.

    • Prolongs shelf life of food items.

    • Facilitates organization in the kitchen.

    • Ensures food is safe and fit for consumption.

Food Processing

  1. Definition of Food Processing:

    • Transformation of raw animal and plant products into food for human consumption.

  2. Industries Not Directly Included in Food Processing:

    • Waste Management is NOT directly linked to food processing; relevant industries include:

      • Slaughterhouses

      • Canneries

  3. Traditional vs. Modern Processing Methods:

    • Traditional practices include fermentation and smoking.

    • Modern approach: Pasteurization and heat treatment.

  4. Examples of Food Processing:

    • Primary Food Processing:

      • Example: Microwaving frozen meals.

    • Other examples include smoking fish and making sausage.

Nutritional Aspects of Food Processing

  1. Drawbacks of Food Processing:

    • Decreases nutritional density of foods.

    • Heating destroys water-soluble vitamins, especially Vitamin C.

    • Vitamin C is also sensitive to air and light exposure, complicating its retention during processing.

Sodium in Processed Foods

  1. Sodium Addition Reasons:

    • Common reasons for adding sodium to food:

      • Improve texture,

      • Add flavor,

      • Prevent spoilage.

    • NOT added to improve nutritional value.

Food Safety and Storage Practices

  • Food Storage Types:

    • Dry Foods:

      • Stored at room temperature, typically in dry cupboards.

    • Semi-Perishable Foods:

      • Items like bread and root vegetables that don’t need refrigeration.

    • Perishable Foods:

      • Require refrigeration to mitigate spoilage.

    • Frozen Foods:

      • Kept in freezers at -18°C and should never be refrozen.

Guidelines for Food Storage

  • Observe 'best before' and 'use by' dates on perishables.

  • Store foods away from cleaning agents to prevent contamination.

  • Rotate stock using FIFO (First In First Out) to use older items first.

  • Store opened dry foods in airtight containers.

Food Storage Methods

  1. Dry Storage:

    • Suitable for non-perishables, maintaining relative humidity at 60-65%.

  2. Canning:

    • Process to prevent bacterial growth, yet may lose sensitive vitamins.

  3. Refrigerated Storage:

    • Common method for preservation, but keep in mind ethylene-producer fruits like bananas.

  4. Cold Storing & Dehydrating:

    • Dehydration prevents microbial growth by removing water but may also lead to vitamin loss.

Food Labels and Dates

  • Importance of dates on food labels:

    • Sell-By Dates: Last date for selling products (like milk, cheese).

    • Best-If-Used-By Dates: Last date for optimal freshness of items like baked goods.

    • Use-By Dates: Last date for consumption of certain products, such as refrigerated dough.

    • Pack Dates: Date of food manufacturing or processing.

Proper Storage Techniques

  • Canned goods are best stored in pantries or a cool, stable temperature area.

  • Chips should be sealed and kept in a cool, dry environment.

  • Eggs should be stored in their original carton in the refrigerator to maintain freshness.

  • Powdered milk is best stored in dark, cool locations to extend shelf life.

Special Food Handling Tips

  1. For unripe tomatoes, store stem side down until ripe in a cool place.

  2. Ripe tomatoes should be kept at room temperature, away from sunlight.

  3. Overripe tomatoes can be refrigerated to slow down ripening, allowing a few days longer for consumption.

Summary of Key Points

  • Proper food storage is essential to maintain food quality and prevent spoilage. It encompasses various methods of storage, understanding the significance of food labels, and recognizing the impact of food processing on nutritional content.