A can is the best way to preserve the textire, presentation and taste of processed food for long, without adding preservatives.
Caning process uses sterillization, invented by a French cook in 1810 to preserve food in such a stable manner that it could be stored and shipped overseas all year long.
Cans are vacuumede then sealed in air tight conditions and go through a high temperature and controlled heating process. The heating process kilss bacteria and preserves the food.
The product can be safely consumed without the help of preservatives.
More info: http://www.mfca.org.my.