Nowadays, people’s living standards are constantly improving, and people’s requirements for quality of life have also become higher. This has also made the use of food packaging bags more and more widespread, but how to maintain food packaging bags to make them use? Longer? How should we choose food packaging bags? Four major maintenance methods for food packaging bags:
1. Because food packaging bags are greatly affected by temperature, remember to try not to place them in a place where the sun can be directly exposed, because intense ultraviolet radiation will accelerate the aging of food packaging bags.
2. Food packaging bags must avoid extreme heat and extreme cold as much as possible, so as to avoid thermal expansion and contraction of food packaging bags and shorten the life span.
3. Keep in mind that food packaging bags must not be placed in a humid place where the air does not flow. This is very easy to make the packaging bag rot and affect its use.
4. Regarding some food packaging bags that have not been used for a long time, be sure to check them carefully for cracks before starting to use them.
The above are the four major maintenance methods for food packaging bags. In our usual use, we must remember this method, so as to make your packaging bags have a better service life.
How to choose food packaging bags
There are many categories of vacuum bags, which are divided into two categories: industrial packaging and food packaging. The product standard required for food vacuum bags is significantly higher than that of general industrial products. What aspects should be paid attention to when selecting food vacuum bags correctly?
1. The outer packaging of food packaging bags for food shall have Chinese labels, indicating the name of the factory, address, and product name, and the words “for food” shall be marked in a prominent place. After the product leaves the factory, the product inspection certificate is attached.
2. Food packaging bags for food are odorless and odorless when they leave the factory. Food packaging bags with special odors cannot be used for food packaging.
3. Colored food packaging bags (the dark red or black colors used in the market at the time) cannot be used for food packaging. Because such food packaging bags are often made of recycled plastic.
4. Try to use materials that are not coated or plated. In modern packaging planning, in order to make the packaging more beautiful and corrosion-resistant, many materials with coatings are used. This not only makes it difficult to recover and reuse the materials after the product is obsolete, but also most of the coatings themselves are toxic. If people eat these packaged foods, it will cause great harm to people’s bodies. In addition, the coating and plating process also brought great pollution to the environment. For example, the paint evaporates toxic solvent gas, and the pollution of waste liquid and waste residue containing heavy metals such as chromium occurs during electroplating. Therefore, packaging materials that are not coated or plated should be used as much as possible.
5. It is best to buy food in large shopping malls instead of street stalls.
6. Because food packaging bags for food are not easily degradable, they will cause environmental pollution. Therefore, when buying food, it is best to use green packaging materials. Paper is now the most widely used green packaging material. Therefore, it is best to choose original paper packaging when shopping for food, and biodegradable plastics are also acceptable.
