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Metal is a versatile packaging material that's used when a high degree of stability is required. It's malleable, lightweight, and recyclable. Metal packaging is made of sheet steel, corrugated sheet metal, or aluminum and comes in the form of cans, drums, or containers.
The four metals commonly used for packaging foods are: Steel, Aluminum, Tin, Chromium. Metal cans are the primary choice of packaging in the food and beverage industry. They can be recycled and reused an infinite number of times and can be manufactured in any desired shape. Metal cans have excellent protective properties, especially against air and light, which can cause adverse effects on the flavor and quality of the beverage. This helps to enhance the product's shelf life.
However, metal packaging has some disadvantages, including: - Poor chemical stability - Acid and alkali resistance is weak - When packaging acidic materials (especially food), metal ions will be precipitated - Inability to see contents
Topics include: Metal packaging materials and tinplate manufacture.
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