The Science Behind Why Freeze Dried Vegetables Last Longer

Vegetables are preserved using a new technique called freeze-drying, which combines the concepts of freezing and food preservation. This process involves lowering the temperature of fresh vegetables to below-freezing levels, which causes the water content in their cells to freeze. Then, a vacuum atmosphere is introduced to enable the direct passage of ice from the solid to the vapor phase, in order to avoid the liquid state completely. By stopping the development of ice crystals, this essential […]