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Naturally occurring substances such as rosemary extract, hops, salt, sugar, vinegar, alcohol, diatomaceous earth and castor oil are also used as traditional preservatives. Certain processes such as freezing, pickling, smoking and salting.the classic example you can refer to is-mummy from Egypt.

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12y ago

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How can one prevent or slow down the decay of food products to keep them fresh and safe for consumption without the use of artificial preservatives?

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