What are the common packaging forms for bakery products?

What are the common packaging forms for bakery products?

(1) Carton packaging: The pastries are directly packed in cartons, such as cakes, etc. This type of packaging has no sealing and barrier properties, so the shelf life of pastries is usually relatively short.

(2) Plastic box: Commonly there is a long barrel shape, such as the packaging of some mung bean cakes, which are stitched with staples to prevent the packaged pastries from being squeezed and deformed, but due to their poor sealing, the shelf life is usually short.

(3) Plastic single-layer film: such as the plastic film used in most bread packaging bags. The shelf life of such products varies with the barrier properties of the plastic film itself.

(4) Composite film packaging: such as plastic composite film packaging, aluminized composite film composed of aluminized film and plastic film, aluminum-plastic composite film composed of aluminum foil and plastic film, etc., the application of aluminum-plastic composite film is relatively small. few. The barrier performance of the composite film is higher than that of the materials used in the above-mentioned several packaging forms. There are generally the following packaging methods:

    Inflatable packaging - fill the packaging with nitrogen to prevent oxidative deterioration and mildew of pastries, such as meat muffins, cakes, etc. This type of packaging usually requires a higher barrier property of the packaging bag (i.e. lower gas permeation), that is, a lower permeation rate of nitrogen, oxygen and other gases, otherwise the nitrogen concentration in the package will decrease, and the quality preservation effect of nitrogen-filled packaging will be reduced. Packaging with trays - In order to prevent the packaged pastries from being squeezed and deformed, the pastries are usually placed on plastic trays and then packaged with packaging bags, such as moon cakes. Desiccant packs are often included in such packages. Ordinary packaging or ordinary air-inflated packaging—package bags are packed directly or filled with a certain amount of air, such as egg yolk crisps, fried sugar, etc.

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