Category Food Preservation

Food Toxins And How To Avoid Them

Food toxins are chemical substances contained in certain foods (either of plant or animal origin) that can sometimes be harmful when ingested. They can be produced naturally or as a result of human involvement. Normally, certain plants and animals form these…

Is Fermentation A Method Of Food Preservation?

Fermentation Fermentation is a process that involves the breakdown of carbohydrates or glucose to simpler forms namely: organic acids and alcohol through the utilization of micro-organisms. This method has been applied since ancient times by different communities for different kinds…

What Is Freeze-drying?

What Is Freeze-drying? Freeze drying is the process that involves the freezing and drying of foods to produce high quality products. This method involves freezing food first, and then drying it. Once a food is frozen, it undergoes the removal…

Smoking Food Preservation

Smoking is a food preservation method whereby a food is exposed to smoke from heated materials, often wood. This method has been in use since ancient times. This method is mainly used to preserve various foods including meat- fish, beef,…

Food Preservatives: Types And Uses

Food preservatives are chemicals that are added to foods and beverages, to preserve them. They prevent decay from occurring either by microbial development or by unwanted chemical changes. Preservatives can either be obtained from natural sources or be manufactured synthetically.…

Canning Food Preservation

Canning is the process of subjecting foods to thermal sterilization and hermetically sealing them into containers, jars or cans. The foods are heated at the required temperature ranges to preserve them. Various foods including meat-poultry, fish etc, and vegetables can…

Heat Preservation Methods

Heating /thermal treatment is a process of food preservation that uses heat to preserve a food. Heat is applied to a food with the aim of destroying micro-organisms and denaturing enzymes that are responsible for spoilage. The high temperatures utilized…

Irradiation-Food Preservation Method

Food irradiation is yet another method of preservation that involves the exposure of food to ionizing radiation using high-energy radiation with small wavelengths of approximately 200 nanometres or high-speed electron beams. The main radiation sources applied for food irradiation (are…