Is the canned food fresh?

Is the canned food fresh?
Most people think that canned food is not fresh, but it is not. The production process of canned food includes raw material pretreatment, canning and packaging, venting, sealing, sterilization, and cooling. The shelf life of processed food is usually more than 12 months. The three key steps of exhaust, sealing and sterilization can largely kill the bacteria that spoil the food, making it healthier to use.