Canning is a method of preserving food for a long time at room temperature by packing it into airtight jars or tin containers and using heat treatment to inactivate microorganisms. The airtight seal formed by the vacuum prevents contact with air and helps prevent spoilage. Jam, tomato paste, and canned vegetables are made using this method.
Where It’s Used
“Can tomato paste using the acid quantity, jar size, and altitude-adjusted boiling-water processing time specified in a tested canning recipe.”
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