Several conservation methods have been used to prevent food spoilage and food poisoning ever since ancient times. These are; salting, drying and smoking. Nowadays, chilling, freezing, dehydration and canning methods are used.

You can see the names of food conservation methods below;

Preparing foods under hygiene rules

High temperature

• Boiling
• Vapour application
• Pasteurization

Low temperature

• Chilling
• Freezing
• Dehydration

High Osmotic Pressure

• Concentrated  sugar
• Salting

Chemical additives

• Organic acids
• Smoking
• Fermentation

Radiation

• UV lights
• Ionized radiation

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