Use of food additives

	Substances which control micro-organisms and chemical spoilage are added to food
	The added substances inactivates or kill micro-organisms, retard chemical spoilage, but are considered relatively safe to humans

Examples: Fruit juices contain benzoates and sulphites, wine contains SO₂, oils contain BHA/BHT

Common food preservation techniques Heat Treatment|Irradiation|Drying and Dehydration Refrigeration|Freezing|Canning Sugaring|Salting|Meat-curing Pickling in vinegar|Use of food additives|Smoking