1. material: disposable food packaging bags are usually made of polyethylene or polypropylene. It is necessary to check whether the quality of materials meets the relevant national standards, for example, PE materials should meet the GB/T 18454 standard.
2. Thickness: the thickness of the piping bag should meet the relevant national standards, such as the thickness of the PE piping bag should be between 0.025mm and 0.08mm..
3. Size: The size of the piping bag should meet the design requirements, such as diameter, length and width.
4. Strength: The strength of the piping bag needs to be able to bear the weight and pressure of food, and it is not easy to break or leak.
5. Sealing: The sealing of the piping bag needs to be good to avoid food pollution and oxidation deterioration.
6. Hygiene and safety: flower packaging bags should meet food hygiene and safety standards and must not contain harmful substances.
7. Packaging: The piping bag should be properly packaged, such as individually or in layers, to ensure hygiene and moisture-proof.
It should be noted that the above standards are for reference only, and the specific inspection standards need to be analyzed and judged according to different manufacturers and product types. At the same time, when using disposable food decorative bags, it is also necessary to comply with relevant health and safety regulations to ensure the quality and health and safety of food.