Smoking: Smoking is another traditional method of food preservation that was widely used by hunter-gatherers. Meat, fish, and other foods were exposed to smoke from a fire, which helped to dry them out and kill bacteria. The smoke also imparted a distinctive flavor to the food.
Salting: Salting is a simple but effective method of food preservation that was used by hunter-gatherers in many parts of the world. Meat, fish, and vegetables were packed in salt or brined in saltwater, which drew out moisture and inhibited the growth of bacteria.
Fermentation: Fermentation is a natural process that occurs when microorganisms break down carbohydrates and produce acids, alcohol, or gases. Hunter-gatherers used fermentation to preserve a variety of foods, including vegetables, fruits, milk, and meat. Fermented foods are not only shelf-stable, but they also provide beneficial probiotics for gut health.
Freezing: In cold climates, hunter-gatherers used freezing to preserve food. Meat, fish, and other perishable items were stored in ice or snow, which prevented bacterial growth and spoilage.
Underground storage: Hunter-gatherers also used underground storage to keep food from spoiling. Pits were dug in the ground and lined with leaves or animal skins, and then filled with food. The earth acted as a natural insulator, keeping the food cool and dark, which slowed down the rate of spoilage.
Animal fat preservation: Some hunter-gatherers used animal fat to preserve food. Meat and fish were coated in a layer of fat, which helped to block out oxygen and moisture, preventing bacterial growth.