All About Cans

The Comprehensive Guide to Cans

History of Cans

The invention of cans dates back to the early 19th century. The concept was introduced by Frenchman Nicolas Appert, who developed a method to preserve food by sealing it in glass jars. This method gained popularity, but glass was heavy and fragile. In 1810, Peter Durand patented the use of tinplated iron for food preservation, leading to the production of the first metal cans.

Initially used for military rations, canned food became available to the general public by the mid-19th century. The invention of the can opener shortly thereafter revolutionized access to canned goods.

Types of Cans

1. Beverage Cans

Commonly made from aluminum, beverage cans are designed for drinks like soda and beer. They are lightweight and fully recyclable.

2. Food Cans

Food cans are typically made from steel or aluminum and are used for a variety of products including fruits, vegetables, soups, and meats.

3. Aerosol Cans

Aerosol cans are used for products like spray paint and deodorants. They utilize a propellant to dispense their contents.

4. Specialty Cans

These include cans with unique closures like pull tabs or pop tops, and are often used for pet food, sauces, and ready-to-eat meals.

Uses of Cans

Cans are widely used across various industries due to their durability and convenience:

  • Food Preservation: Canning is an excellent way to keep food safe and edible for long periods.
  • Portability: Canned goods can be easily transported, making them ideal for camping, travel, and emergencies.
  • Variety: Cans allow for a wide range of food products, from fruits and vegetables to soups and sauces.

Environmental Impact

The environmental impact of cans can vary significantly. While the production of aluminum cans is energy-intensive, they are 100% recyclable. Recycling aluminum saves up to 95% of the energy required to produce new aluminum from raw materials.

Steel cans also have a strong recycling rate and can be recycled endlessly without loss of quality, making their overall environmental footprint lower than many plastic alternatives.

Fun Facts About Cans

  • The first cans were opened with chisel and hammer; the modern can opener was not invented until 1858.
  • Aluminum cans are a common choice for beverages, making up over 50% of all beverage containers sold in the United States.
  • The first soft drink sold in a can was Krueger's Cream Ale, released in 1935.