The purpose of product packaging

When the central part of the bread or cake is cooled to about 35 degrees Celsius, it should be packaged immediately. If you continue to expose to the air for a long time, it will make bread and other products easily aging, mold infection, water loss, affect the flavor.

1. Delayed product aging Starch-aged bread is hard and dry, the core is inelastic, and the bread tends to fall off when sliced. This affects the flavor and reduces the body's digestion and absorption rate. Aging phenomenon is an inevitable trend in bread storage, but the product after packaging can delay aging, because the bread is kept in a relatively constant state of moisture, not easy to lose water, delay the aqueous phase separation of starch colloid, colloidal loss of water is also It is an important cause of aging.

2. The prevention of pollution and moldy bread as a direct-to-eat food requires clearing of hygiene and prevention of contamination of dirt and fungi during storage, transportation, and sales; the water content of the bread skin is generally around 12 to 16%. If the temperature and humidity are appropriate, With fungal infections, it will be highly susceptible to mildew. Although some manufacturers have added anti-mold agents and other measures in summer to prevent moldy deterioration, they cannot be avoided without proper packaging. The finished product after packaging prevents infections from coming into contact with air, containers and hands, and extends the shelf life. If the anti-mould agent is used in the formulation, and the waterproof material is better, the experiment proves that it can be stored for half a month under the condition of temperature of 32-35 degrees Celsius and relative humidity of 90%; Good sealing can also be maintained for 7 days. However, under the same conditions, if the unpackaged bread can only be preserved for 2 days, the importance of the package to mildew resistance can be seen.

3. Preventing damaged bread not only has the potential to be contaminated in storage, transportation, and sales, but also has the disadvantage of being damaged and incomplete. In particular, products with softer textures or surface-sprayed pastes are more prone to occur. Packaging breads with films can avoid mutual friction and crushing, and can also play a role of shock absorption, preventing collisions and destroying the integrity of the appearance. For products that are easier to flatten or have surface coating, transparent plastic trays should be used for protection and then covered with film.

4. The beautification of goods and the enhancement of value-packed products are very eye-catching because of the novelty and colorfulness of the patterns, beautifying the goods, and improving the product level. Packaging can also play a role in propagating the nutritional characteristics of the product. It can be said that packaging is also a form of advertising that makes the product well-known.