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Books > Food & Drink > General cookery > Preserving > General
Preserving is defined as the process of maintaining a food's state
or condition even for a long period of time and canning is
considered as one of the most popular processes of preserving food
items. Food items like fruits, vegetables, etc. have a shelf life
period by which they would stay fresh and edible, but usually, this
shelf life is not as long as you want it to be. However, if they
undergo the process of canning and preserving, they can maintain
their condition and still be edible even if they are past their
actual shelf life already. This is because canning involves putting
these foods inside airtight cans or jars in order to lock in
freshness and prevent spoilage as well as preserving involves
putting ingredients such as salt, lemon, vinegar, etc. that have
the ability to preserve food and lengthen their shelf life.
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