Extending the Shelf Life

Soybean products are rich in nutrients such as protein and are prone to spoilage due to the growth of microorganisms at room temperature. For example, tofu and dried bean curd have relatively high moisture content, which makes them a good medium for the growth of microorganisms. Vacuum packaging machines can extract the air inside the packaging, reduce the content of oxygen and moisture, inhibit the growth and reproduction of aerobic microorganisms and some enzymatic reactions, thus significantly extending the shelf life of soybean products. Generally, tofu that is not vacuum packaged may only be preserved for 1 to 2 days, while under refrigerated conditions, its shelf life can be extended to 7 to 10 days after being vacuum packaged.

Maintaining the Flavor and Quality

Soybean products have unique flavors, such as the bean aroma of soy milk and the fermented flavor of fermented bean curd. Vacuum packaging can reduce the contact between soybean products and the external environment and prevent the volatilization and oxidation of flavor substances. Take dried bean milk cream in tight rolls as an example. If it is left in the air for a long time, it will absorb moisture and become soft, and its fragrance will also fade. Vacuum packaging can help it maintain a dry and crispy texture and a rich bean aroma, allowing consumers to taste the original flavor of soybean products when eating them. Meanwhile, it can also keep its shape intact and not be easily broken or deformed.

Facilitating Storage and Transportation

The packaging of soybean products becomes more compact after being vacuum packaged, which can save space during storage and is convenient for stacking in the warehouse. In the transportation process, it can reduce the damage to soybean products caused by shaking and collision. For example, natto has a relatively soft texture. Vacuum packaging can prevent it from being squeezed and deformed during transportation, ensuring that the product can reach consumers in a better condition. Moreover, vacuum packaging is also beneficial to the long-distance transportation and cold chain distribution of soybean products, expanding their sales range.

Enhancing the Product Image

Good vacuum packaging can make the packaging of soybean products look more beautiful and tidy. For some branded soybean products, exquisite vacuum packaging can attract consumers' attention and make them more competitive on supermarket shelves. Consumers usually think that products with good packaging are more guaranteed in terms of quality and hygiene, thus increasing their willingness to buy. For example, some specialty dried bean curd products, when using vacuum packaging combined with an elaborate label design, can effectively enhance the grade and brand image of the products.