Can canning food prevent its spoilage? Why?
(i) because microbes cannot enter in the can
(ii) because food will dry.
(iii) because air is absent inside the can
(iv) there is brine inside the can
Answer (2)
Canning food prevents spoilage primarily due to the absence of air inside the can, which limits the growth of spoilage microorganisms. The heating process involved in canning also eliminates many existing microbes that could cause spoilage. Thus, the correct choice is option (iii): because air is absent inside the can.
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Canning prevents spoilage primarily by creating an airtight environment that minimizes exposure to air. This vacuum sealing limits the growth of spoilage microorganisms that rely on oxygen. The heating process used during canning also eliminates many of the microbes involved in spoilage. ;
