The safety requirements for food packaging are extremely important. Many companies simply ignore the security on the packaging, which makes the original quality, quality and potential market products fail to gain the trust of users.
Hygiene of packaging materials
In the selection of packaging materials, the packaging of toxic or residual toxic components is absolutely prohibited. People have established different degrees of trust in different packaging materials over the years.
Consumers pack different types of packaging materials for food. The greatest degree of confidence in their safety is the use of glass, followed by ceramics, while the lowest level of security confidence is in wood and plastics. Originally, wood and plastic were also relatively safe packaging materials. The reason why the trust of both of them is reduced may be related to environmental protection and some restrictions on wood packaging in foreign countries.
The hygienic safety of packaging materials is also related to the production process and treatment methods of packaging materials. Taking paper packaging materials as an example, the paper colorants contain fluorescent dyes, and there are toxic residual substances in various fillers, adhesives, and pulp preservatives, and they must be strictly tested for the use of fluorescent dyes. Color-treated paper cannot be used to package foods. Wax paper packaging used to be used for packaging of confectionary foods. It is now verified that wax paper contains residual monomers and certain waxes are also carcinogenic. Therefore, in modern packaging, wax paper has been banned from packaging foods.
Health effects of different packaging technologies
For different packaging treatment technologies, the health effects are not the same. In modern packaging technology, people generally believe that the packaged food after high-temperature sterilization treatment is the most hygienic and safe, followed by low-temperature quick-freeze packaged foods are also more hygienic and safe. Purely from the perspective of packaging technology, it is generally considered that vacuum-packed foods are safe and safe, but some foods can be processed by high temperature or vacuum-packed, while others cannot. Therefore, high-temperature processed packaged foods or high-temperature processed foods can be used to highlight the processes or technologies that people trust most. Vacuum packaging can use vacuum packaging as much as possible.
Modern technology is constantly applied to modern food packaging. After treatment, the sanitary effect is excellent, but the processed food should be preserved as much as possible in terms of nutrients, color, aroma, and taste. For example, radiation treatment, microwave processing, etc., are all ideal technical applications.
Other health and safety factors
Other factors that affect the health and safety of food packaging are as follows:
Human Factors. When people come in contact with food or packaging during packaging, it may cause bacteria or other contaminants. Therefore, food packaging should be mechanically packaged as much as possible.
Physical factors. It is the surface of the packaging or storage and transportation of food packaging, which should be as smooth and flat as possible to avoid the inclusion of debris and cause pollution. In particular, the outer surface of the package should be noted. Otherwise, food dirt or dust will lead to contamination with bacteria or visual hygiene.
Matching factors. Different foods are matched with different packaging, mainly in terms of chemical properties or color matching. For example, the composition of the food and the ingredients of the packaging material can not produce harmful chemical reactions within a certain period of time after packaging; for example, the color of the food and the color of the packaging can not cause human visual misguidance (mold discoloration problem). This means that research on the health and safety of food packaging must take into account the matching factors.
Transport safety
Handling safety refers to the safety issues in the process of transportation and loading and unloading. It also includes the safety of consumers when they are shopping and after shopping. These security issues can be considered from the following aspects.
Good stability, will not dump or move; have good fixability, will not be scattered or infiltrated, outflow (liquid food); without injury to the edges, corners and burrs; with a dedicated handheld device, try Reduce temporary adjuncts (eg, ropes, bags, or other); transport versatility, mechanically or manually, and occupy as little space as possible.
Exhibition security
Exhibition security refers to food packaging must meet the display requirements. Neither affect itself nor affect the surrounding display of goods at the same time, specifically to meet the following requirements.
It is best able to adapt to various forms of display, such as flat display, vertical display, hanging display, etc.; display quality can be guaranteed, such as no leakage during the display (water, gas, etc.), no discoloration, no deformation, no deterioration Such as perspective; through different packaging structures or methods of use, to display the food in the package, such as through the outer surface of the package to display the food pattern consistent with the food in the package, it is difficult to achieve, can be attached to the outer package food samples; Or through transparent packaging (or open perspective window) so that consumers can see the texture, color, shape of the packaged food, so that consumers have a sense of security and trust.
Use safety
The most typical food packaging safety can be reflected by the canned or oral liquid packaging improvements. In the past, there was a jingle that “canned food is difficult to open.†Today, the use of safety is advocated. This situation has been changed, and many easy-open cans have appeared. At the same time, the same is true for glass bottled oral liquids, and the ring lid openable oral liquid glass packaging has become the mainstream today.
The safe use of food packaging can be considered from the following aspects: it will not cause harm to users when using it; automatic operation is convenient and safe, no attachments or tools (such as drills, openers, and knives, etc.) Pressing, squeezing, etc. can be turned on and activated; foods that do not need to be heated (resulting in burns being caused by heat) can be burned or burned to the consumer; open tools attached to the package are safe to use. Reliable guarantee. Shi Chunsheng