Litchi freeze-drying process

by:CBFI     2020-10-01
Freeze-dried litchi is through food freezing dryer equipment temperature drying dehydration. Freeze-dried litchi to keep the original color, litchi has intense aromas of fresh lychee aroma, after water faster, more intense aroma after water, the freeze-dried litchi after water close to the flavor of fresh litchi.
litchi freeze-dried food freeze-drying machining process, the litchi whole fruit and litchi pulp respectively for freeze-dried, litchi pretreatment process for the whole fruit: pick & rarr; Cut off branches & rarr; Cleaning & rarr; Ideas from dry & rarr; Plate weighing & rarr; Into the freezer precool; Litchi pulp pretreatment process is: select & rarr; Cut off branches & rarr; Cleaning & rarr; Ideas from dry & rarr; Skin & rarr; To nuclear & rarr; Segmentation & rarr; Plate weighing & rarr; Frozen into the freezer. Litchi precool for - temperature 30℃。 Drying: first the cold trap precooling to - 35 ℃, opened the door of dry warehouse, loading bone-chilled litchi, shut the doors and start the vacuum unit in time, when the vacuum degree reaches 60 pa, start heating, heating process need to guarantee the stability of the vacuum degree of work, and that the highest temperature does not exceed 50 ℃.





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