Rearrange the following sentences to form a coherent paragraph: 1. The key aim of this process is to make items safer to consume by reducing germs and impurities. 2. Food preservation refers to techniques used to keep perishable items from spoiling quickly. 3. These techniques may include drying, freezing, canning, and methods like salting or pickling. 4. Moreover, it helps retain quality, improves storage duration, and reduces overall food waste.

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