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Many people have a common misunderstanding: canned food has a long shelf life, is ready to eat, and therefore must contain a lot of preservatives. It is even often labeled as “junk food.” But is that really true? The fact is, canned food has been widely misunderstood.
Canned Food Really Doesn't Need Preservatives According to Chinese food standard GB 2760-2024, preservatives are not allowed in canned food products. This regulation reflects the advancement of food industry technology and breaks the long-standing misunderstanding that canned food relies on preservatives.
After sealing, canned semi-finished products must be sterilized within 2 hours. Low-temperature sterilization is carried out at 80–100°C, and high-temperature sterilization at 105–121°C. At these temperatures, microorganisms cannot survive.
After high-temperature sterilization, the cans are cooled below 40°C. This creates negative pressure inside the container, making the lid even more tightly sealed. Through this process, no microorganisms remain inside the can, and microorganisms from the outside cannot enter. That is why canned food does not need preservatives.
Canned Food Can Also Be Nutritious Scientific comparisons may change the way people think. Over the same storage period, canned food may retain certain nutrients better than fresh food stored at room temperature, reducing the loss of some vitamins and flavor compounds.
And when the weather is hot, chilled canned fruit can be a refreshing summer choice. Compared with sugary drinks and ice cream, chilled canned fruit offers a more balanced experience: first sip the syrup, then enjoy the icy texture, and finally taste the fruit. It is a refreshing three-layer summer treat.
keywords： It's Unfair! Canned Fruit Is Not"Junk Food"!
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