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Do canned foods have preservatives?
Classification：Company news
Release time：2024-09-20 10:47:41
Canned foods usually do not contain preservatives. Their long-term preservation mainly relies on high-temperature sterilization and vacuum sealing techniques, which comply with the standards stipulated in the national standard (GB2760-2024).
Storage principles and techniques
Canned foods achieve food preservation through the following physical processes, without the need to add preservatives:
High-temperature sterilization: Completely kill microorganisms to ensure a commercial sterile environment.
Vacuum sealing: Isolate from external air and bacteria to prevent secondary contamination.
Natural preservative components: High sugar or high salt environments (such as sugar-water canned food) can inhibit microbial growth.