A "can" is a cylindrical container typically made of metal or plastic, used for storing food and beverages. Cans are sealed to preserve the contents and protect them from contamination, making them a popular choice for packaging items like soda, vegetables, and soup. They come in various sizes and can be opened using a can opener or a pull-tab. Cans are designed to be lightweight and durable, allowing for easy transportation and storage. The process of canning involves heating the contents to kill bacteria, ensuring a longer shelf life. This method of preservation is widely used in the food industry, contributing to the convenience of ready-to-eat meals.