Freeze-dried blueberry crisp 15g freeze-dried blueberry crisp. Freeze-dried fruits vegetables retain ¾ of their nutritional value. their moisture content is below 2 , and since this moisture content does not allow microbiological activity, they retain their freshness for decades if the packages are unopened. 15g freeze-dried blueberries contain the nutritional value of approximately 140g fresh blueberries.
What is FREEZE-DRYING Technology?
Known as Lyophilization in scientific literature,freeze-dryingtechnology is one of the most advanced drying methods applicable to foods. In the freeze-drying method, the product is first frozen, and then the frozen water inside the product sublimes under low pressure, transitioning from the solid phase to the gaseous phase. The water molecules in the gaseous phase are trapped by ice condensers within the device and removed from the environment and the product.
The moisture content of products that begin the drying process frozen is reduced to approximately 2 in the low-pressure and low-temperature environment created within the machine. During this process, no deformation such as wrinkling or melting is observed in products that do not enter the liquid phase. The shapes of dried products are almost identical to their fresh forms.
Foods dried using conventional methods lose a significant portion of their nutritional value, flavor, aroma, and color due to exposure to high temperatures.Products dried using the freeze-drying method at low temperature ( 40 C) and low pressure ( 13 Pa) retain their nutritional and vitamin value, aroma, odor, color, taste, and shape.