According to a study on food packaging materials, glass is the safest option for consumers’ healthby far. 

That this material is suitable for food packaging is evident from its use in various sectors that are particularly demanding in terms of the qualities of the packaging to be used to preserve and market their products. Glass jars and bottles arethe packaging chosen by more than 8,000 Spanish food companies. One of the advantages of this material is that it is chemically inert, so that it guarantees the original properties of the products it contains, as well as being a natural, hygienic and aseptic material. 

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In the food industry, legislation on food contact materials is very strict and evolves as new packaging is developed or research progresses. In this context, a new research published in the journal Critical Reviews in Food Science and Nutrition has put the spotlight on chemicals in packaging materials. The result is that there are almost 3,000 substances that come into direct contact with food and could therefore migrate into the contents of the packaging, increasing the exposure of consumers to these chemicals. The quantity and type of substances in 6 types of materials were analysed, finding that 65% of the chemicals found are hitherto unknown and were not on any regulatory list; more than two thirds of substances identified as potentially contaminating food were found in plastics. However, glass and ceramics are by far the safest and healthiest option for the sector. 

 

The low chemical complexity of the glass results from the fusion of natural raw materials (silica sand, sodium carbonate and limestone) to produce a stable, inert material and a single-layer container that does not require varnishes or plastics to be in safe contact with food and beverages. 

Glass meets all expectations and needs as it is synonymous with safety and sustainability. But the benefits of glass go far beyond the food industry, as it is a material that underpins many of our technologies. On the other hand, its recycling is integral and infinite, without losing quantity or quality in the process, known as a permanent material. This quality makes it possible to obtain a recycled material suitable for creating a new food packaging, offering the same guarantees as one made from raw materials, saving energy, reducing emissions and avoiding the generation of waste.