Question

which common way of preserving food is the highest in sodium

Answer 1

Answer:

Salt.

Explanation:

Salt is effective as a preservative because it reduces the water activity of foods. Also the first major addition to foods was as salt, which acted to prevent spoilage.

HOPE THIS HELPS.

Answer 2

Salting

Salt has been used as a preservative, aging way back in 5000 BC, and works to preserve food in two ways: Salt dries food. Salt draws water out of food and dehydrates it. All things need a form of water, so the absents of it prevents things like bacteria from growing. :D hope that helps?