Application of packaging machine in pastry

There are cakes with extremely high water content, including cakes and rice cakes; some with extremely low water content, such as cakes and rice cakes; some with extremely low water content, such as peach cakes, etc.; and so on; some stuffing, such as moon cakes and so on. Therefore, the packaging of the pastry should be adapted to these different characteristics. For pastries with low moisture content, such as shortbread, fragrant cake, crispy candy, egg roll and other food packaging, moisture resistance is required first, followed by gas resistance, pressure resistance, oil resistance and tear resistance. The main packaging forms are: plastic sheet Material thermoforming shallow tray packaging wrapped with PET or BOPP film or covered with lid material for heat sealing, set with transparent plastic bag sealing; carton lined with PE, PET/PE, BOPP/PE and other film bags not only have good protection Its moisture-proof and gas-proof performance is also ideal, so the shelf life is long and the display effect is good. For cakes with high water content, cakes, cream desserts, etc. are easy to be mildewed, and at the same time, their internal tissues have a porous structure with a large surface area, which is easy to lose moisture and become dry and hard; in addition, due to the complex composition of cakes , Oxidative odor is also the main reason for quality deterioration. Therefore, packaging is mainly to prevent mildew and water loss, followed by anti-oxidation and odor, so packaging materials with good moisture and gas barrier properties, such as PET/PE, BOPP/PE and other films, should be used for packaging. Plastic sheet thermoforming boxes are used to hold such foods; high-grade pastries can be made of high-performance composite films with vacuum or inflatable packaging technology, or encapsulated with deoxidizers, etc., which can effectively prevent oxidation, rancidity, mildew and moisture. loss, significantly extending the shelf life. For fried cakes and other types of foods with extremely high oil content, it is easy to cause oxidative rancidity, resulting in deterioration of color, aroma, taste, and even haram. The key to packaging is to prevent oxidative rancidity, and the second is to prevent oil from oozing out of packaging materials and causing pollution To affect the appearance, the inner packaging is often wrapped or bagged with moisture-proof and oil-resistant thin materials such as PE, PP, and PET. High-performance composite films with better oxygen barrier and aroma retention, such as KBOPP/PE, KPT/PE, BOPP/A1/PE, etc., can be used for fried flavor snacks with higher requirements, and vacuum or nitrogen-filled packaging can also be used at the same time. Or encapsulate a deoxidizer in the package. Kenwei brand packaging machines are widely used in the food industry. Foods such as moon cakes have a short shelf life. The special moon cake packaging machine developed by Kenwei is used. The machine can automatically seal the deoxidizer in the moon cakes to slightly prolong the freshness period.

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