Glass bottles, with their advantages of corrosion resistance, high-temperature resistance, non-toxicity and odorlessness, have become ideal packaging containers for the food, cosmetics, pharmaceuticals and other industries. The quality of raw materials directly determines the final quality of glass bottles. Therefore, the quality control of raw materials is a crucial link in the production process of glass bottle manufacturers.

To ensure that raw materials meet production standards, high-quality glass bottle manufacturers will give priority to establishing long-term cooperative relationships with reputable suppliers. This stable cooperation model can largely ensure the stability and reliability of raw material supply and avoid fluctuations in raw material quality caused by frequent changes in suppliers.

Meanwhile, manufacturers will also establish a strict sampling and inspection mechanism for raw materials. For the core raw materials such as quartz sand, limestone and soda ash that are purchased, comprehensive tests will be conducted on their chemical composition and physical properties. In terms of chemical composition, it is necessary to ensure that the content of various elements in the raw materials complies with the proportion standards to avoid excessive harmful impurities affecting the safety of the glass bottles. In terms of physical properties, it is necessary to test the particle size, purity and other indicators of the raw materials to ensure that they have good melting performance, laying a solid foundation for the subsequent melting process.

In addition, with the continuous upgrading of industry standards, such as the increasingly strict requirements for glass products used in food contact as stipulated in the GB 4806.5-2016 standard, glass bottle manufacturers will also strictly follow relevant standards when testing raw materials to ensure that every batch of raw materials meets compliance requirements. Only by strictly controlling the quality of raw materials from the source can the subsequent production process proceed smoothly and ultimately high-quality glass bottle products that meet market demands be produced.