Technology food preservation notes

Food preservation terms with definitions and content

Food Preservation

Processes and techniques to prevent food spoilage, making it safer, easier to digest, and extending shelf life.

Disadvantages of Food Processing

Loss of nutrients and higher costs associated with food processing.

Food Processing

Treatment of food before sale; often seen as overly processed and unhealthy.

Fresh Food

Considered a healthier choice compared to processed foods.

Causes of Spoilage

Spoilage occurs due to microorganisms such as bacteria, yeast, or mold.

Grain Conservation

Staple foods stored in silos or homes to ensure year-round availability.

Common Storage Methods for Grains

Clay pots (zefala), grass baskets (izisulu), grain pits (iziles), canvas bags, and elevated grain huts.

Pickling

Immersion of foods in brine to prevent spoilage; common examples include cucumbers and onions.

Curing

Using salt to preserve food (e.g., biltong), enhancing flavor and inhibiting spoilage.

Drying

Dehydrating food to prolong shelf life; a traditional example is Dipabi