vacuum freeze-drying of onions
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Several precautions for vacuum freeze-drying of onions
Freeze dried onions are highly hygroscopic and flavorful. After discharge, it should be crushed, screened, and packaged in a low humidity and clean environment as soon as possible. It is recommended to use high barrier aluminum foil bags, vacuum or nitrogen filled packaging, and control the humidity in the packaging room. If exporting seasoning powder or soup ingredients, attention should also be paid to indicators such as sulfur dioxide residue, microorganisms, and metal foreign substances.
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